Barbecued Beef Sandwiches
["1 1/2 lbs. ground beef", "3/4 c. chopped onion", "1 (8 oz.) can tomato sauce", "1/2 c. finely chopped green pepper", "1/4 cup ketchup", "1 1/2 tsp. salt", "2 Tbsp. brown sugar", "2 Tbsp. barbecue sauce", "2 Tbsp. vinegar", "1 Tbsp. prepared mustard", "1 Tbsp. Worcestershire sauce", "1/4 tsp. pepper"]
["Brown meat in large skillet; drain. Add onion and green pepper. Cook 5 minutes. Add remaining ingredients. Cover and simmer for 1 hour. Serve on buns."]
["ground beef", "onion", "tomato sauce", "green pepper", "ketchup", "salt", "brown sugar", "barbecue sauce", "vinegar", "mustard", "Worcestershire sauce", "pepper"]