1 lb. ground beef
4 slices bacon, cut 1 inch pieces
1/2 c. chopped onion
1 (28 oz.) can baked beans
1 (15 oz.) can kidney beans, drained
1/2 c. firmly packed brown sugar
1/2 c. ketchup
1 tbsp. vinegar
1 tsp. mustard

In skillet brown ground beef, bacon and onion; drain. Add all remaining ingredients; mix well. Pour into ungreased 2-quart casserole dish. Cover, bake at 350 degrees for 35 minutes or until bubbly.