Hamburger Barbecue(Sloppy Joes)  
["6 Tbsp. margarine", "3 lb. hamburger", "1 c. chopped onion", "1 c. chopped green pepper", "1 c. chopped celery", "2 1/4 c. tomato sauce", "3 Tbsp. vinegar", "3 Tbsp. sugar", "2 tsp. salt", "1/4 tsp. pepper", "4 tsp. Worcestershire", "3/4 c. chili sauce"]
["Melt margarine in large skillet.", "Brown hamburger meat.", "Mix onions, green pepper and celery.", "Cook over low heat 5 minutes. Blend in tomato sauce, chili sauce, Worcestershire, pepper, salt, sugar and vinegar.", "Simmer for about 15 minutes, stirring often. Serve on hamburger buns."]
["margarine", "hamburger", "onion", "green pepper", "celery", "tomato sauce", "vinegar", "sugar", "salt", "pepper", "Worcestershire", "chili sauce"]