2 tbsp. shortening
2 c. chopped onions
1 lb. hamburger
1 tsp. salt
1 c. ketchup
2 tbsp. mustard
1 tbsp. vinegar
1 c. brown sugar
2 lb. can pork-n-beans
1 lb. can kidney beans

Fry meat until brown in shortening with onions. Add remaining ingredients. Pour into baking dish. Bake 30 minutes.