1 tbsp. shortening
1/2 c. onion, finely chopped
1/2 c. green pepper, chopped
2 (8 oz.) cans tomato sauce
1 (6 oz.) can tomato paste
1 tsp. Worcestershire sauce
1 tsp. salt
1 tsp. dry mustard
3 tbsp. brown sugar
1 1/4 c. water
1/4 c. vinegar
4 c. beef, cooked

Saute onion and pepper together in 1 tablespoon shortening. Add remaining ingredients. Simmer everything together for at least 45 minutes to 1 hour. Serve on hamburger buns.