2 lb. ground beef
1 can tomato soup
2 tsp. prepared mustard
2 or 3 drops Worcestershire sauce
Onion to taste
Salt & pepper to taste

Marinate all above ingredients overnight. Slice sandwich buns in half. Lay a piece of cheese on bun, cover entire bun with meat mixture, be careful to cover all edges. Place under broiler for approximately 8 minutes. Serve hot.