1/4 c. fat or salad oil
2 c. chopped onion
1 lb. ground lean beef
1 tsp. salt
1 c. tomato ketchup
2 tbsp. prepared mustard
2 tsp. cider vinegar
2 (1 lb.) cans pork and beans in tomato sauce
1 lb. can kidney beans, drained

Heat fat in a skillet. Add onions, simmer until golden yellow. Add ground beef. Stir with a fork while beef browns slightly. Add remaining ingredients. Pour into a bean pot or a 2 quart casserole. Bake in a hot (400 degree) oven for 30 minutes. Makes 8 servings.