I posted this in the picky eater thread...not especially gross combos, but a lot of people think I'm weird for liking: kipper snacks on crackers or pretzels (sardines are alright too, just not as tasty), anchovies on my pizza, pickled herrings (I prefer cream sauce to vinegar), cottage cheese with plenty of pepper...oh, some people can't understand why I love cranberry juice so much
I know I've got some really gross ones, but I can't think of them...
In high school, we had the most boring pizzas ever, so I would always dress them up as crazy as I could...onion slices, dill pickle slices, and BBQ sauce wasn't half bad. Later, I learned to embrace Ranch dressing, so I'd just use that for...well...just about everything they served ;D Got sick of it, though, so nowadays I don't use Ranch for much except Buffalo chicken \m/