(From Potato City, Coudersport, Pa.) Dice the pepper and onion, and sautee for a few minutes in butter. Cook and crumbe the bacon into bits. Grate cheese, setting some aside for topping. Prepare mashed potatoes. While potatoes are still hot, fold in the pepper and onions and add the bacon and most of the cheese. Add salt and pepper to taste. Place the mixture in a casserole. When ready to serve, top with remaining cheese and broil until cheese melts. Serve hot.