Barbecue Meat Loaf
["1 1/2 lb. lean ground beef", "1 c. soft bread crumbs", "1 small onion, diced", "1 egg, beaten", "1 tsp. salt", "1/4 tsp. pepper", "2 (8 oz.) cans tomato sauce, divided", "3 Tbsp. brown sugar", "3 Tbsp. vinegar", "2 Tbsp. prepared mustard", "2 tsp. Worcestershire sauce"]
["Combine first 6 ingredients; add 1/2 cup tomato sauce and stir well.", "Shape into a 12 x 7-inch loaf; place on a lightly greased rack of broiler pan."]
["lean ground beef", "bread crumbs", "onion", "egg", "salt", "pepper", "tomato sauce", "brown sugar", "vinegar", "mustard", "Worcestershire sauce"]