Something I remember my dad always making when I was young. Buy the bologna that is not presliced. The big tube looking kind. Slice it think and grill it.(kinda like fried bologna). And put it on a sandwich with lettuce, tomato, cheese or whatever.
Beans and cornbread. Buy the really large can of beans and vent it and put next to the coals to slow cook.
This one I haven't tried yet, but I recently saw online and it sounds good. Take a banana and open one peel and stuff it with mini marshmallows and chocolate chips and a crushed up graham cracker. Close back up, wrap in foil and heat in the fire.