Most of the traditional ethnic foods in North Dakota have either Scandinavian or German roots. A lot of the Scandinavian stuff is pretty bland and based on flour, milk, potatoes, and various whitefish. Not a lot of folks still eat much of that sort of thing anymore but there are exceptions (church suppers will have lutefisk and lefse in the sort of manner that more southern churches have chicken noodle. However, chicken noodle is good as is lefse). There are pretty good German-style sausages that are made in a couple of small towns (many a debate has existed on this board about the merits of Wishek vs Langdon/Munich sausage). Fried walleye is a ND/MN favorite that really doesn't exist beyond southern Minnesota or Wisconsin.
I ate my weight in this stuff over Christmas.
https://www.ag.ndsu.edu/food/recipes.../fleischkeukle
That's not the one I saw. Adam Richman is the guy who eats quantities of food. It may have been the other guy. He was at some festival in northern Minnesota. When he tried the lutefisk the lady who gave it to him said it was an acquired taste. He said he had no interest in acquiring it. This one is pretty good though too.