As PapaBill says...depends on the mood and also place fo me...
Hot dogs..at a cook out/ ball game...mustard, ketchup, relish, onions,
at home..mustard, onions, homemade chili. (drool)
Hamburgers.. at a cookout/home....mustard,ketchup,mayo,onions,tomato,dill pickles,lettuce.swiss/cheddar slice. (yum,smack,slobber,drool.)