We used to eat peanut butter, grape jelly, and butter sandwiches, on white bread. Also the same combo on saltine crackers. The thought even revolts me now - I can't imagine eating one. Blech!
I also remember as a child loving the taste of raw (well, right out of the refrigerator) hot dogs, and spaghettios out of the can, cold. The combination was a favorite. I can't even fathom eating that now - the last time I had spaghettios, warm, the were vile. Cold would be right out.