1 1/2 lb. ground beef
1 medium onion, chopped
1 medium green pepper, chopped
3 stalks celery, chopped
6 tbsp. ketchup
2 tbsp. prepared mustard
4 to 5 dashes of hot sauce
8 oz. sour cream

Combine first 4 ingredients in a frying pan and cook until meat is brown and vegetables are soft. Reduce heat. Add remaining ingredients, stirring until well mixed and heated through. Serve on hamburger buns.