Anecdote: I asked for the "mushroom burger" on their menu at an airport years ago -- I didn't want meat and it had nothing indicting meat in the listed ingredients that I checked -- and they brought me a hamburger beef patty with mushrooms on top. Imagine both of our surprises when they brought me the plate and I was like uhm I think that's another table's order? Well it turns out, at least to that restaurant (idk about the rest of the locality), that was considered a mushroom burger. Elsewhere in the same country (and even Googling it now), a mushroom burger means a vegetarian burger with a portobello mushroom or such as the "patty". Like how a salmon burger means the patty is made of salmon, or a veggie burger means the patty is made of veggies.
I sat there looking dumb and the waiter thought (like everyone here) that I was some idiot who didn't know what a burger was. Now I'm not suggesting they need to regulate what "mushroom burger" means across the locality too, but I couldn't have been the first one to get caught off-guard by this, and the whole incident never needed to happen either. At least in an airport where people from all over stop by, I seriously wouldn't think that only a racist or anti-meatatarian/anti-vegetarian dictatorship would impose some common-sense rules to prevent confusion or food/time wastage arising from cuisine-"unculturedness".
A mushroom burger is a normal order at a takeaway in New Zealand: the usual beef burger, but with added mushroom.
Note that there is often a rather restricted choice for vegetarian or vegan food (unless you pick your place carefully).
If I ordered a mushroom burger (especially as my preferred “mushroom and Swiss burger”), I’d be surprised if it came without the beef patty (the burger part).
It’s not that I can’t understand that the other exists, but my brain is wired to think of mushroom as a topping/adjective and burger as the noun.
I've seen the meat version plenty of times too, it's not like I couldn't understand that either. That was the entire reason I checked the ingredients, which had never failed me until then. Restaurants normally list something about the meat if it's there... but not always.
Which I point out here because there are people saying "just check the ingredients" and, no, this clearly happened despite that.
And which I also point out because the same people arguing "just check the ingredients" would get mad (possibly even more so) if you actually agree and decide to require reliable ingredient lists.
P.S. The top result I see for "what is a mushroom burger" on Google is meatless: https://www.recipetineats.com/swiss-mushroom-burger/
I once ordered a vegetarian burger in some kind of trivia bar of a big american city. It came with bacon... When I asked they said: "but nobody ever complained about having bacon in it". there are alternate realities out there. Even in the deepest small town I had never seen that.
I can’t think of many places in the US where “mushroom burger” doesn’t mean a beef burger with mushrooms. Maybe in a vegetation or vegan restaurant.
Now if you asked for a mushroom veggie burger, that would be different.
Perhaps you should visit more of the US, or visit different types of restaurants? Neither meaning is as dominant as you make it sound. You see both within five minute walks of each other.
Heck, the top result I get for "what is a mushroom burger" on Google right now is a meatless one: https://www.recipetineats.com/swiss-mushroom-burger/
And the top AI result is similarly about another non-veg restaurant's meatless burger.
Haha I guess we discovered the mysterious country you were referring to when you said, "Elsewhere in the same country." I wonder why you didn't want to reveal it? Could it be because you knew you were wrong, ahead of time?
I'm talking about restaurants, not SEO'd slop recipe sites on google.
> You see both within five minute walks of each other.
Provide an example, then.
Here are some real-world examples:
Red Robin's "Sauteed 'Shroom" burger: https://www.redrobin.com/menu/burgers/sauteed-shroom
Chili's mushroom swiss burger: https://www.chilis.com/menu/big-mouth-burgers/mushroom-swiss... - notice how this one doesn't say anything about a meat patty, except for the picture. That's because without some kind of qualifer, by default "burger" means a sandwich with a beef patty, everywhere in the US.
Buffalo Wild Wings mushroom swiss burger: https://www.buffalowildwings.com/menu/categories/burgers/mus... - also no mention of beef.
Those are chain restaurants which can be found throughout the US, so you can't claim this is something regional. I defy you to find a single counterexample at a restaurant like this. Certainly, this is going to be what you get at any airport restaurant.
Here's an example of how vegeterian mushroom burgers are typically listed, at https://www.barhygge.com/menus : "Mushroom-Barley Veggie Burger". Notice the "veggie". That's what will typically be specified unless you're at a vegan or vegetarian place where it's assumed.