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Today, a fellow user was given a CAPTCHA that looks like this:

captcha

He wasn't sure how to solve the CAPTCHA, so he asked me: Are hamburgers considered sandwiches? Well, I couldn't figure it out, so I'm asking here!


I know that the hamburger has in the past been called a sandwich. Wikipedia even says:

A hamburger (also called a beef burger, hamburger sandwich, burger or hamburg) is a sandwich consisting of one or more cooked patties of ground meat, usually beef, placed inside a sliced bun.

It explicitly says that it's a sandwich. And I suppose someone must have called it a "hamburger sandwich" at one point, but it sounds very odd to me—like someone put a piece of beef between two hamburgers. Anyway, I don't think that term is in common use, and it's easy to find examples like the following in print:

Also on offer are hamburgers, sandwiches, and salads.

And this seems to imply that hamburgers and sandwiches are different things. So I'm not sure I can take Wikipedia's word on this one.


Since I didn't know how to respond to the question, I brought it up in EL&U chat, where different people put forth different arguments. It was even suggested that the American English / British English difference might be relevant. But so far I don't think we've come to a conclusion, so I decided to ask on the main site.

I'm not sure what to think. All I have is speculation. Maybe hamburgers were once considered sandwiches by everyone, but now the terms are diverging and speakers have started to disagree. Or maybe it just depends on where you're from. Or maybe hamburgers exist in an interdeterminate state of quasi-sandwichhood.

So I ask you all:

Is a hamburger a sandwich?

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  • 1
    This bacons the question (and I'm dying to know): DId CAPTCHA want the human to select three images, or two?
    – J.R.
    Commented May 24, 2015 at 10:15
  • Ask the Earl of Sandwich.
    – Hot Licks
    Commented May 4, 2016 at 11:52
  • 1
    @J.R. I would have selected zero. I see two burgers and a bagel, but no sandwiches. Commented Jul 28, 2019 at 19:48
  • 1
    Life is an event-filled diaper sandwich
    – Mitch
    Commented Oct 24, 2019 at 17:23
  • Many varied responses to this issue when it came up not as a direct question about categories: forum.duolingo.com/comment/27238780 Commented Nov 6, 2019 at 7:00

12 Answers 12

28

No... I mean ... Yes ... I mean ... It's complicated.

Technically, of course a hamburger is a sandwich, by looking at a dictionary definition. Or to be pedantic (and give prelude to the complication), those things called 'hamburger' include all those properties that are defined and given the label 'sandwich'.

But what something 'is' and what something is 'called' and what its 'name' is (as Lewis Carroll said) are not (not necessarily) the same.

But that's almost too technical itself. A peanut is not a nut. A cardinal is a bird but doesn't have to have bird in its name to be a bird. A penguin is a bird even though many definitions of bird include 'flying'. Birds are now known to be dinosaurs, but that is a recent discovery (just like how at one time whales were considered fish).

The thing about 'technically', we don't normally use words that way. Is a cucumber a vegetable or a fruit? It's certainly a vegetable, formally or informally. But is it a fruit? It's not put in the fruit section with the apples and oranges and watermelon (when technically it is closely related to watermelon). No, a cucumber is considered a vegetable because it is green and not sweet, a lot like lettuce and celery.

Back to hamburger. So technically, yes, a hamburger is a sandwich, a very particular kind of sandwich. It has a lot of things unlike most sandwiches (a hot, grilled layer; a bun rather than sliced bread).

But, informally, it just doesn't seem like a sandwich. A BLT or chicken salad sandwich or corned beef on rye (mustard, no mayo) or even a grilled cheese all look like a usual sandwich. But a hamburger does not. There are many things about a hamburger (how it is prepared, where you can buy one, cultural associations) that are just not like a canonical sandwich.

So technically, yes, a hamburger is a kind of sandwich.

But if you did not include #5, the picture of a hamburger, in your answers, I'd say you're more like a human, and the robot would have included #5 because it is simple-mindedly rule based.

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    in all forms and manners a cheeseburge is a sandwich. in what would does a patty decline a sandwich from being so? It has two layers of bread that holds within itself the form of sanwich filling that by definition inclines itself to acceptance in the subsection of foods that can, will, do, and are called sandwiches. You have some nerve to come here with this 'technically' business. A crispy grilled chicken sandwich is exactly the same. It does not contain lunchmeat but by the very definition of sandwichness it encompasses this completely and, dare I say, exemplifies sandwich to the nth! Commented May 15, 2015 at 19:34
  • 2
    to me, informally, a hamburger definitely seems like a sandwich. and in fact it is. it's two pieces of bread with filling. that's what a sandwich is. i don't think this is "just" a technical definition. i would bet most english speakers you ask would consider a hamburger a type of sandwich. they just might not call it such very frequently. there's nothing complicated about this, really.
    – user428517
    Commented May 15, 2015 at 19:48
  • 9
    @hownowbrowncow, sgroves: It may be simple in your mind, but it is not in others (witness this question, and also witness that there has been at least one legal case about it). For myself, if someone asked me what I wanted for lunch, and I said oh 'pick me up a sandwich', and they brought me back a hamburger, I'd think they messed up. But others may not feel the same way. Just like if I asked for fruit and they brought me a cucumber (well I'm pretty sure everyone would think that was not what was intended).
    – Mitch
    Commented May 15, 2015 at 19:57
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    A BLT, a Chicken Salad, a Corned Beef, and even a Grilled Cheese can all be served on a bun. But they would still be a sandwich. Just as a hamburger can be served between two slices of bread, and would be a more 'recognizable' sandwich.
    – Zibbobz
    Commented May 15, 2015 at 20:36
  • 1
    bun rather than sliced bread -- at least one very famous burger restaurant serves burger with sliced white bread and never a bun: Louis' Lunch. The restaurant claims (and is generally recognized) to have invented the burger and to this day they serve it the way it was invented -- on sliced white bread.
    – slebetman
    Commented May 16, 2015 at 15:32
17

YES.

Any item consisting of a filling served between 2 pieces of bread is a sandwich.

Merriam-Webster says:

Sandwich: 1a : two or more slices of bread or a split roll having a filling in between

Hamburger: 2: a sandwich consisting of a patty of hamburger in a split typically round bun

dictionary.com says:

hamburger: a sandwich consisting of a cooked patty of ground or chopped beef, usually in a roll or bun, variously garnished.

wikipedia says:

A hamburger (also called a beef burger, hamburger sandwich, burger or hamburg) is a sandwich consisting of one or more cooked patties of ground meat, usually beef, placed inside a sliced bun

The Hamburger is such a common sandwich that it no longer needs to have the word "sandwich" specified; it qualifies as its own sub-class.

If I were presented with that CAPTCHA, I'd select items 3, 4, and 5 as sandwiches.

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    That brings up the next question: is a bagel a roll? ;-) Commented May 15, 2015 at 17:10
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    And it evades the really important and profoundly divisive question: is a hot dog a sandwich? Commented May 15, 2015 at 17:11
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    @Stoneyb, a hot dog is not normally a sandwich because it's not served between two pieces of bread; there's just one piece that has been cut into a V-shape. ;-p
    – Hellion
    Commented May 15, 2015 at 17:16
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    @Hellion But in my experience those two pieces separate on the first or second bite -- does the hot dog then evolve into a sandwich? Commented May 15, 2015 at 17:21
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    My housemate always calls (one or more) sausages between bread dog rolls, even if the bread is two slices from a cut loaf rather than a split roll or bun. Me, I think burgers are always burgers, not sandwiches, but a dog roll is a sausage sandwich if it's made with sliced bread. Most people I know who've ever said anything about this think it's a bit silly for McDonalds to insist on calling their offerings "sandwiches" in the UK, where hardly any native speakers find the usage at all natural. Commented May 15, 2015 at 17:49
12

Yes, in the most literal sense

As noted in comments, burgers are a sub-category of sandwiches, which is why menus often list them separately - listing only sandwiches does not necessarily connote that they serve burgers, and listing only burgers does not connote that they serve non-burger sandwiches.

11

Yes, it is a type of sandwich, thus it is a sandwich. It is even ruled by a judge in New York Supreme Court in 1980:

A New York Supreme Court judge has ruled that a hamburger is a sandwich.

"Defendant's narrow viewpoint that a 'hamburger is a hamburger' and not a sandwich is only true where a person would order 'beef ground' without the bread," Justice William Underwood wrote in a 12-page decision released June 12.

Toledo Blade - Jun 26, 1980

Today, it is not usually called a sandwich but I usually hear it called (or I call it) a sandwich in fast-food restaurants when you want to buy just the sandwich instead of a meal. However, you can call it a burger also.

OED entry for burger:

A familiar shortening of Hamburger n. Also used as a terminal element, e.g. in beefburger, porkburger, etc., usu. denoting a roll, sandwich, etc., containing the foodstuff specified in the first element. orig. U.S.

The word Hamburger also appears in Hamburger Steak (same as Hamburg Steak) and it is also a kind of sausage; but today, it is used commonly for a hamburger sandwich. In the past, the phrase hamburger sandwich was more common than it is used today and OED has an example from 1943:

She held a pair of..gloves in one hand and a hamburger sandwich in the other.

R.A.F. Jrnl. Aug. 10

The earliest citation for hamburger sandwich I could find is from 1902:

To start the thing off right, I ate a hamburger sandwich, carefully eliminating the gravel and other foreign substances as I came to them.

Desmos of Delta Sigma Delta, Volumes 9-11

Google Ngram result for hamburger sandwich between 1900-2000:

enter image description here

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  • 4
    Note that because there is an ELU question, and there was a US case about it, leads one to realize that there is some doubt as to whether a hamburger is a sandwich. Note the similar is a hot dog a sausage?
    – Mitch
    Commented May 15, 2015 at 17:38
  • 6
    @Mitch: It is not a sandwich because it is ruled by a judge, of course. It is a sandwich because it is a sandwich :)
    – ermanen
    Commented May 15, 2015 at 17:42
  • 2
    You left out comparing against 'hamburger' all by itself. That still might have difficulties, but you sill need to give a base rate.
    – Mitch
    Commented May 15, 2015 at 17:45
  • 2
    Did you look at the comparison graph? It shows that 'hamburger sandwich' is almost nonexistent in comparison to just 'hamburger' ('hamburger sandwich' incidences being a subset of 'hamburger')
    – Mitch
    Commented May 15, 2015 at 17:59
  • @Mitch: Maybe I can clarify what I said. I didn't claim that "hamburger sandwich" was more common than "hamburger". I tried to say that "hamburger sandwich" was more common than it is used today.
    – ermanen
    Commented May 15, 2015 at 18:01
7

I am a native British English speaker. When I first entered a Macdonalds I noticed that they referred to their hamburgers etc as "sandwiches". That usage jarred in my mind. For that reason (which I will explain further) I would say that in British English usage a hamburger is not a sandwich.

In my dialect, the core idea of a sandwich is something placed between two slices of bread. The core idea of a "hamburger" is either a shaped item of meat, or the same placed between two parts of a bread roll (what an American would call a "bun" I suspect). A "hamburger sandwich" would be a hamburger placed between slices of bread.

Of course the verb "sandwich" has a much wider sense and does not require the involvement of bread and a hamburger is indeed sandwiches between Macdonalds' "buns", but being sandwiched and being a sandwich aren't the same thing.

At least one commenter has indicated that they too find this usage odd, so in British English I would avoid using "sandwich" to refer to anything other than something made with sliced bread (as one assumes, possibly wrongly, the Earl of Sandwich would have used).

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    The origins of the "hamburger" as we know it are a little murky, but it's generally agreed to have originated in the US Midwest some time between 1885 and 1904. And pretty much from the start it was in a bun. And I doubt that you''ll find any evidence anywhere that the verb "sandwich" is anything other than a back-formation of sorts from the noun for the thing that is bread with stuff in the middle.
    – Hot Licks
    Commented May 16, 2015 at 19:55
  • 1
    @HotLicks: Etymological fallacy will get you nowhere though. Francis describes how language actually works in describing their native speaker intuition. Is a glass a cup? Is a door a gate? Commented May 16, 2015 at 23:00
  • In fact all the answers are describing their native speaker intuitions. Some of them think they're describing natural ontologies or etymologies, just there's more Americans in this discussion. This dividing of senses in the minds of speakers is one of the most fascinating things in languages. Try it with "kebab", "shawarma", "doner", etc across languages! Commented May 16, 2015 at 23:10
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    I hoped I was clear I was describing my native language rather than anyone else's - I think it helps to understand what usages work are confined to some subsets of English. Of course "sandwich" is a back-formation, but that doesn't mean everything that is sandwiched is a sandwich :-). Commented May 17, 2015 at 8:32
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I'll take the roundabout way of answering.

Is a tomato a fruit or a vegetable? The answer is different depending on if you're asking botanically (a fruit) or culinarily (a vegetable). The same is true for other fruits as well, such as a cucumber. A peanut is culinarily nut, but botanically it is a legume (related to peas and beans).

Likewise, a hamburger is culinarily different from a sandwich - you'll see it listed separately on menus and it's often referred to differently, especially when there are other sandwich options - but it's still a sandwich.

When I'm ordering a burger from a fast food place, they'll often say "do you want the combo, or just the sandwich". So it is referred to that way in specific circumstances.

4

A hamburger is a sub-category of sandwich. Like a square is a rectangle but a rectangle isn't necessarily a square, a hamburger is a sandwich but a sandwich isn't necessarily a hamburger.

Adding cheese to a hamburger, adds another level to the categorization:

sandwich->hamburger->cheeseburger

but then when you get bacon involved, it gets more complicated.

sandwich->hamburger->cheeseburger->bacon cheeseburger

or

sandwich->hamburger->bacon hamburger.

I think time of day also affects the naming convention. If it's before ten a.m., I think you'd call it a breakfast sandwich without egg, but for the rest of the day, from what I understand, I'd call it a hamburger.

Maybe, specify the full name as sandwich.hamburger to avoid confusion. So, if time is between 12:00 a.m. and 10:00 a.m., then "hamburger breakfast sandwich without egg", but if the time is between 10:01 a.m. and 11:59 p.m., then, ask if cheese is present, if yes, then "sandwich.cheeseburger", else "sandwich.hamburger"...bacon, etc

4

There is a more abstract meta-analysis of features to help in determining what you want the definition of sandwich to be, in order to judge if hamburger fits it analytically.

For a given food preparation, there are too properties, structural and contents, and each can have three values, traditional, neutral, and exotic.

Traditional means canonical. For structure, flat stuff between two flat bread pieces, for content meat, cheese, flat(tened) veggies, or spreadable such things.

sandwich alignment chart

I can't seem to find the original source but here is one derivative.

The diagram is somewhat jocular in formation but I think is still a reasonable analysis.

From the diagram, I definitely don't consider a wrap, on one end, or an ice-cream sandwich on the other a sandwich. Yes in the latter the items are sandwiched and 'sandwich' is in the name, but I'd still be upset if you gave me one if I asked for a sandwich.

So exotic is out for both. Now if someone gave me a hotdog when I asked for a sandwich, I'd be really confused, but I wouldn't be upset. I personally don't think of a hotdog as a sandwich even though it fits the 'lunch' situation.

I don't even know what 'chip butty' means, but it looks like a sandwich. Sot, to that end of specifying a definition, I say it is structurally neutral or above, and ingredients neutral or above.

By only these rule based criteria, a hamburger has traditional structure, and somewhat neutral ingredients, and so it fits the definition of sandwich.

Given my conflicting answer saying that I don't consider a hamburger a sandwich, I guess there are more unspecified features that rule out hamburger from being one.

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    "Chip butty": Chips are what Americans call something like "chunky fries". A "butty" is a round roll/bun/bap with a filling.
    – AndyT
    Commented Aug 15, 2018 at 12:13
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    The nice thing about the "Radical Sandwich Anarchy" category is that it accepts that a green olive stuffed with a pimiento is a sandwich.
    – Sven Yargs
    Commented Jul 28, 2019 at 17:58
  • 1
    @SvenYargs If you’re really pedantic, the olive itself is a sandwich – just don’t try to chew the filling! Commented Jul 28, 2019 at 20:09
  • @AndyT - it varies by dialect. In my home region of the UK a "butty" would be a sandwich (sliced bread with butter and a filling), though in some places it could also include a roll/bun/bap/batch it would not exclude the sliced bread. I was introduced to sugar butties at age 5 by people working on one of my father's sites in North Wales. They used shop-bought sliced bread. Commented Aug 2, 2019 at 22:03
3

IT DEPENDS!

Since this is a language site and not a semantics, ontology, or classification site, we need only think about it in terms of how languages work. And remember, language doesn't really go in for such mundane concepts as logic or historical accuracy.

In the United States of America a hamburger is most definitely considered to be a kind of sandwich. The same item with chicken instead of beef will typically be called a "chicken sandwich" in America.

In Australia a hamburger is one kind of burger. Burgers are not seen as a kind of sandwich by Australians. Other kinds of burgers exist, such as chicken burgers, even though a hamburger typically does not contain ham.

Another thing is what would we call the meat part on its own? Some people do indeed also call that a hamburger, but when it gets confusing we'd usually say hamburger patty if it's destined to be served in a hamburger. But if it's going to be served on a plate accompanied by veggies to be eaten with a knife and fork, then it's a rissole!

To the Aussie mind a burger comes on a bun and has cooked ingredients. A sandwich comes on bread which is typically sliced bread. In fact we don't call it as a sandwich if it comes on a bun no matter what is in it. In this case we would call it a roll. For instance a salad roll. We would understand that such a salad roll is more or less kind of a sandwich, but a burger is just too different.

So even the things we buy at Subway we don't really feel comfortable calling a sandwich.

This could be changing as each generation of Australian kids take up more American English speech patterns than the previous generation going back to World War II. I'm middle aged and overseas more than half the time so not guaranteed to have my finger on the pulse of Australian English. I also haven't been to the USA since 2000.

As far as other English speaking countries such as the United Kingdom, New Zealand, South Africa, India, etc. I am interested to see if anybody from those places contributes an answer.

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    What kind of bread do you suppose the Earl of Sandwich used? I'm guessing it wasn't a loaf of pre-sliced white bread.
    – Hot Licks
    Commented May 16, 2015 at 11:41
  • I think the Earl had very chunky slices he hacked straight off the loaf himself. Didn't mention him for the same reason I haven't spotted anyone mention sausage originally from Hamburg yet. I did think about both as I was enjoying this QA though. Commented May 16, 2015 at 12:13
  • More likely it was something like a hoagie bun.
    – Hot Licks
    Commented May 16, 2015 at 12:15
  • We don't have hoagies. Are they like subs, which we also don't have but we're used to Subway now (-: Commented May 16, 2015 at 12:17
  • The Earl's bread, in the 1770s, would most likely have been in the form of a "baguette" -- what in the US is often called "French bread". One can imagine that a half or a third of a loaf would have been sliced lengthwise to allow insertion of what was presumably some sort of sliced meat -- very closely resembling a hoagie (or, as the less cultured call it, a "sub").
    – Hot Licks
    Commented May 16, 2015 at 12:40
3

The only instance of a 'hamburger' that isn't a sandwich which I can think of would be a Salsbury Steak, though a true Salsbury Steak would not have the same patty-shape of a hamburger.

As many others have quoted and stated in their own answer, the definition of a sandwich comprises that of a hamburger.

A Sandwich is:

...a food item consisting of one or more types of food placed on or between slices of bread, or more generally any dish wherein two or more pieces of bread serve as a container or wrapper for some other food.

And a Hamburger is:

...a sandwich(( consisting of one or more cooked patties of ground meat, usually beef, placed inside a sliced bun...

Do not let the fact that it is served on a bun confuse you - a bun is a type of bread.

any of a wide variety of variously shaped bread rolls, usually leavened and slightly sweetened or plain, sometimes containing spices, dried currants, etc.

The fact that it is shaped differently does not change the fact that it is a sandwich. A Reuben, a Cuban, a BLT all can be served on a bun, and they would still be called a "sandwich".


And to put the final nail in the coffin, a hamburger itself does not have to be served on a bun.

Burger
(source: seriouseats.com)

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    I see a photo of a rissole sandwich. Commented May 21, 2015 at 2:41
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    Now you're just telling people how their own native dialect works and their own mind works. I wouldn't think of that as a hamburger but feel free to make up my mind for me if you don't want to learn about. And thanks for the analysis. Commented May 21, 2015 at 17:24
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    @hippietrail All the same, I think this discussion has gotten out of hand, and will probably be cleaned up shortly (and rightly so), and since I don't use the chat room personally, I'd like to apologize for my abrasive behavior. Your initial comment rubbed me the wrong way, since I thought that it was referring to the quality of the picture only, but I can see it's much more complicated than that. I still hold that a burger patty can be served between two slices of bread, but apparently, a rissole can too, and it is something very similar to a burger patty.
    – Zibbobz
    Commented May 21, 2015 at 17:46
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    That's not a hamburger, that's a patty melt. (That's not a criticism, it's just an additional monkey wrench in your excellent answer.)
    – J.R.
    Commented May 24, 2015 at 10:12
  • 1
    Agree with hippietrail and J.R.: that photo is a patty sandwich (or patty melt, or whatever other local terms for it there may be), not a hamburger. I also would not call a BLT served on a bun a sandwich. It’s an integral and indispensable part of the definition of a sandwich to me that the outer layers are slices of bread – not halved buns or rolls. A falafel pita is also not a sandwich to me, nor is a panwich (despite the name) or a cracked taco. Commented Jul 28, 2019 at 20:02
2

This is not just a British/Colonial English vs American English issue. Most languages in the world use the British terminology for hamburger.

Hàn băo in Chinese means hamburger and sān míng zhì means sandwich. If you want a chicken sandwich on a bun in China you order a "jī hàn băo" (chicken hamburger). This is regardless as to whether or not the chicken meat is reconstituted. Ordering a jī sān míng zhì will get you a different dish, probably a cold slice of chicken lunchmeat between slices of bread.

Out of context Hàn by itself would mean the Chinese (people), the majority ethnic group, and băo means bread, but these words do not mean Chinese bread. They are direct carryovers of the English phonetics.

On the other hand, Americans believe firmly in the idea that ground meat or a ground meat substitute equates directly to hamburger. Countries with strong American influence, like many in the caribbean, will be more likely to follow their rules in the usage.

Hamburgers in America are generally served in a bun, but not always. Hamburger (without the article) can be served on top of pizza, in a salad, in a lettuce wrap, or simply naked on a plate. It's still hamburger no matter how it's dressed.

Hamburgers originated in America as a dish named after the German city Hamburg. They were beef which was ground up or throughly tenderized. It was popular and people started putting them in kaiser rolls (also German/Austrian) which had been around since the 1700s. Using American terminology for hamburger would be "correct" and "authentic" in the same way as using Italian pronunciations for Italian foods and dishes.

However, you don't need to be fluent in Italian to actually order Italian food. You instead need to be fluent in the local language of where you're ordering. Similarly, you should understand that there will be some differences between Colonial and American English. You'll be much better understood if you use the dialect of the person you're speaking to.

Many Americans mistakenly call Japanese teppanyaki restaurants "hibachi" restaurants. Teppanyaki is "correct" and "authentic," yet so many people make the mistake the two that Japanese will often put Hibachi and Teppanyaki on their restaurant signs (even if they're only selling Teppanyaki). On the other side of the world, no one would make such a mistake in Japan.

So people need to understand that local dialects will differ. There isn't always a right or wrong. There is often an authentic term of origin, but whatever is common in the area you're living in is the local standard.

Confusingly, chicken fried steak is not chicken. That's for another discussion.

0

Several answers on this page give persuasive arguments for the view that hamburgers are sandwiches. What makes these answers incomplete, though, is that they don't explain why most people still feel a certain awkwardness about calling them sandwiches, in spite of the persuasiveness of these arguments.

The reason is that most other kinds of sandwiches don't have single-word names, and that, consequently, to refer to them, we usually have to use descriptive phrases that incorporate the word sandwich, such as chicken sandwich or ham and cheese sandwich. Frequent use of these phrases impresses upon our minds that they are sandwiches. Hamburgers stand apart, conceptually, because the defining characteristics of a hamburger include the defining characteristics of a sandwich, which makes it unnecessary to ever use the word sandwich when speaking about hamburgers (we don't normally use a broad term, when a more specific, equally simple term is readily available).

Thus, although hamburgers are sandwiches, we rarely have an occasion to call them sandwiches, which makes us hesitate when we are asked to acknowledge that they are.

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    A Reuben has a single-word name, and I don't think anybody would hesitate to call it a sandwich. Commented Jul 28, 2019 at 18:00
  • Like Peter, I don't think this has much to do with it. No one says BLT sandwich or po'boy sandwich or Monte Cristo sandwich; likewise no one disputes that a lobster roll, French dip, or an Italian beef are all sandwiches, nor for that matter heroes, grinders, hoagies, or subs. "Sandwich" is at least optional for grilled cheese, PB&J, and turkey club as well.
    – choster
    Commented Jul 28, 2019 at 18:07
  • @PeterShor, it is true that people sometimes say 'I'll have a Reuben', but the phrase 'Reuben sandwich' is not at all uncommon; the use of Reuben as a stand-alone name seems derived from its use as a qualifier within the phrase Reuben sandwich. On the other hand, one practically never hears the phrase hamburger sandwich, and it would be difficult to regard hamburger, used by itself, as a truncated version of hamburger sandwich.
    – jsw29
    Commented Jul 28, 2019 at 21:31
  • @choster, it is true that one wouldn't normally say 'po'boy sandwich' or 'Italian beef sandwich', when one is ordering food in a restaurant that has such sandwiches among its offerings. It is, however, not uncommon to use such phrases in other contexts.
    – jsw29
    Commented Jul 28, 2019 at 21:51