1 lb. hamburger
2 tbsp. butter
1/2 c. water
1 c. catsup
2 tsp. prepared mustard
2 tsp. vinegar
2 (16 oz.) cans baked beans
1 (16 oz.) can yellow butter beans
1 (16 oz.) can red kidney beans
1 pkg. dry onion soup mix
1/2 c. brown sugar

Brown hamburger in butter, then combine with other ingredients in 2 1/2 quart baking dish. Bake 400 degrees for 45 minutes.