1 tbsp. oil
1 sm. onion, chopped
1/2 green pepper, chopped
1 lb. ground beef
1 tsp. salt
1/4 tsp. pepper
1 tbsp. prepared mustard
2 tbsp. ketchup
1 tbsp. Worcestershire sauce
3 c. cooked rice
1 (28 oz.) can tomatoes

Cook rice. Saute onion and pepper in oil until soft. Add ground beef and seasonings. Add remaining ingredients; mix thoroughly. Reduce heat and simmer, covered, for 15 minutes.