Tripe and onions
Tripe and onions is a traditional dish in the United Kingdom, particularly popular in Yorkshire and Lancashire. It consists of cooked tripe, which is the lining of a cow's stomach, served with onions, often in a creamy sauce, and is known for its unique flavor that some people love while others dislike.
Recipes

Tripe with onion and parsley | Allyson Gofton
Tripe seems to be one of those foods that divides us, you either hate or love it. Internationally, there are plenty of well-known tripe dishes. Tripes a la mode de Caen from Normandy featuring cider and calvados, or Pepperpot from the US with its origins...