1 can baked beans
1 can kidney beans
1 can butter beans
2/3 c. brown sugar
1/2 c. ketchup
2 tbsp. vinegar
2 tbsp. mustard
1 lb. hamburger
1 lg. onion

Fry hamburger and onions until brown. Mix mustard, vinegar, brown sugar and ketchup together. Drain kidney beans and butter beans. Mix all together. Bake at 350 degrees for 35-40 minutes.