I think it's funny how you can go into pretty much any American-Mexican restaurant in the US and they have exactly the same menu. No matter the state or the owner of the establishment.
Not only is it always the same but it is also an absolutely enormous menu. I haven't lived in USA for many years but I recall being able to get a mountain of food during the lunch specials for something like $4. I'm sure that isn't possible anymore.
Not quite that good, but you do still get a lot of food. When my wife and I order chicken fajitas we can usually share them and get another meal a piece out of them. Of course it doesn't help that we fill up so much on the chips and salsa! One thing I really love about American-Mexican restaurants is that the food comes out fast since most of the prep work for the dishes is all done ahead of time. All they really have to do is sear off the protein and veggies and slap it together.