How about these:
Cheez Whiz and Velveeta
Spam and it's competitors, Spork and Prem.
Saskatoon berry pie although it isn't a prepared food but an actual recipe developed for the berry which only grows wild in North America
Bison - roasted, fried, stewed.......all good
Forgot flapper pie - a western Canadian delight and of course, Boston cream pie
Founder of the Dyslexic Clique. Dyslexics of the world - UNTIE!!
Foods invented at the Chicago World's Fair: Hershey's chocolate, Cream of Wheat, Cracker Jacks, Aunt Jemima pancake mix, Juicy Fruit Gum. Also, anything made of corn, maple syrup, and tomatoes (Tomatoes were thought to be poisonous when first discovered by Europeans.)
I realize that I'm generalizing here, but as is often the case when I generalize, I don't care. ~ Dave Barry