Three Bean Casserole

Ingredients

• 1 lb. hamburger
• 1/4 lb. bacon
• 1/2 c. ketchup
• 3/4 c. brown sugar
• 1 tsp. vinegar
• 1 tsp. mustard
• 1/8 tsp. salt
• 1 (1 lb.) can pork and beans
• 1 (1 lb.) can green lima beans
• 1 (1 lb.) can red kidney beans