Three Bean Casserole

Ingredients

• 1 lb. ground beef
• 3 to 4 slices bacon
• 1 onion
• 1 can pork and beans
• 1 can lima beans
• 1 can kidney beans
• 3/4 c. brown sugar
• 1 tsp. dry mustard
• 1 tsp. vinegar
• 1/2 c. catsup