1 lb. ground beef, browned and drained
1 c. onion, chopped
1 tsp. salt
1 c. ketchup
1 tbsp. vinegar
2 tbsp. mustard
1 c. brown sugar
2 - 1 lb. cans pork & beans
1 can kidney beans, drained

Mix all ingredients together and pour into baking dish.

Bake at 350°F for about 1 hour.