“Midwesterner” I think is the proper term.
OK, that’s an unfair generalization, but it does have some truth to it. I remember living in Ohio for a bit, and would often have problems trying to get people to try new kinds of foods. An Indian place opened up, and almost no one wanted to accompany me. I found two people who would come, only to find out later that both of them were transplanted northeasterners.
I also remember bringing Dim Sum into the office for everyone to try. I’d even explain what was in each dish. The most unusual ingredient in one of the dishes was taro, which tastes almost exaclty like potato. There was a wide variety of dishes with shrimp and chicken, and so on. Two people (a religious couple) told me that they would not even try it because ‘it looked too chinese’, whatever that means.
We also had a pot-luck where everyone was supposed to bring in dishes that were representative of our heritage. I brought in potato pancakes (aka latkes) with sour cream, and bagels and cream cheese, and lox with onion and tomato. I ended up bringing almost all of it home with me.
BTW, my middle-schooler nephew is a very picky eater, but he has several severe food allergies, so at least he has a good excuse.
We told him a week later.