Bean Casserole

Ingredients

• 1/2 lb. hamburger
• 1/2 lb. bacon
• large onion, diced
• 1 (1 lb.) can lima beans
• 1 (1 lb.) can kidney beans
• 1 (1 lb.) can butter beans
• 2 (1 lb.) cans Campbell's pork and beans
• 3/4 c. brown sugar
• 1/2 c. catsup
• 2 Tbsp. vinegar