So while you may get spicy veggie cake hotpots elsewhere in the world, in the US you get... air quotes burgers? To really understand what I mean, it would likely be eye opening to see what american fast food chains look like in Asia: they have an insane amount of variety that makes their counterparts in the US look like bad jokes. It took ages for McD to wake up to breakfast culture, and likewise for Lays to pick up on mexicans' taste for spicy snacks and now these are huge segments for them. I'm still dumbfounded that food company execs don't see the lost opportunity of not introducing more variety rather than trying to make everything conform to pre-establish molds.
Food tastes vary a lot from person and place, so I do think it's very risky. To give you a successful example, poke bowls became popular in the urban US in the early 2010s, and reached my college town around 2015 or so? But my guess is that the locals don't eat there much, just the students. I think it's because people are less adventurous in aggregate than you might think, and the economics don't work out.
See McDonald's international menu, which is in my opinion kind of terrible. There must be something holding them back.
Even without creating culture, I think there are food items that big food companies could conceivably offer in a market like the US and still be relatively well accepted: chicken pot pie, pastas/lasagnas, crepes, fish and chips, are all things that americans are warm to and don't necessarily involve a huge slab of red meat as the core of the dish. One of those can even be made in a McD restaurant with existing ingredients today.