Almost all my food loathings come from school dinners.
I went to a lot of schools (father in armed forces) I can remember one, it was about 1950 and schol mash was made from from potato powder and when mixed it was full of tiny little lumps, that made me gag - and I cannot eat mash potatoes to this day. At the same school, the minced beef (?) was so gristly that when a tooth came out during lunch, I ended up swallowing it, mistaking it for a bit of gristle. My parents assured me the tooth fairy knew and understood and would still visit.
At boarding school, if we had boiled eggs for breakfast, theystood them on end side to side in a shallow bain-marie. These are quite shallow and the water did not quite cover he eggs so that we often had boiled eggs that were rock hard one end while at the other end the white was still liquid. Just the thought of it makes me want to heave.
Then there was pink blancmange with a thick skin on it and macaroni cheese that hadn't been within 10 miles of a piece of cheese
Cannot think of anything I really liked or remember with pleasure.