Haven't eaten it since I was 16 or so, but I loved toast (white bread) with ketchup and nutella (yes, spread on the same side, not like one half ketchup and the other half nutella)
Edit because it came to my mind: My girlfriend finds it really weird that I like to spread mayonnaise on my meat-bread (like proper bread with salami or other sliced meat sitting on top of mayonnaise)