The most disgusting thing I ever had to eat would be....a cream puff.
I remember in elementary school we were outside at recess and one of the girls had a plastic baggy full of cream puffs (I thought this pastry was tasty looking).
So when she offered one to me I took it without hesitation. I bit into what I thought was something yummy and I was so very wrong. It was foul and utterly disgusting- the filling was sour but no I could not spit it out, I was taught manners and I swallowed.
I carefully edged closer to the trashcan and deposed of this monstrosity. Never again have I touched one and when I see one I get flashbacks of that sunny day at recess but I can say I never ate other more hellish dishes because they will NOT get close to my mouth.