For some reason, I always wonder about this when i have one dish from one region, alongside one from another.
Example, sort of, is my casual supper tonight. I made a veggie burger wrap with mushrooms, seasonings and cheddar, topped with jalapeno mustard (Beaver brand btw...yum!)...but I had already made a side dish of kohlrabi and carrot salad, which in addition to peanut butter, included rice vinegar and sesame oil in the dressing...pretty much asian. It was a pretty good meal, all told. No one ate it but me.
Am I doing my food a disservice when i do stuff like this? It's not very often , and the above example is not totally distinct, but it has happened. Like when i've had friends over and made crab rangoon as a pre-dinner snack (on the request of a friend, who loved them), with dinner being lasagna and salad.