1 can tomato soup
2-3 tbsp. ketchup
1 sm. onion, chopped
1 tsp. sugar
1 tbsp. vinegar
1 tsp. mustard
1 lb. hamburger

Brown hamburger, drain fat. Saute in onions, then mix in all the ingredients; mix up real well and simmer 15-20 minutes! Serve on hamburger buns. And enjoy!