Bean Casserole

Ingredients

• 3 to 6 slices bacon
• 3/4 to 1 lb. hamburger
• 1 medium chopped onion (1/2 c.)
• 1 can green beans
• 1 can kidney beans
• 1 can lima beans
• 1 can butter beans
• 1 can pork and beans
• 1/2 c. catsup
• 2 tsp. vinegar
• 1/2 c. packed brown sugar
• 1 tsp. dry mustard
• 1 tsp. salt
• dash of pepper