Mixed Bean Casserole

Ingredients

• 1 lb. ground beef
• 1/2 c. catsup
• 1/2 tsp. mustard
• 2 tsp. vinegar
• 3 Tbsp. brown sugar
• 1 small onion, minced
• 1 can lima beans, drained
• 1 can kidney beans, drained
• 1 can pork and beans
• 1/2 tsp. salt
• dash of pepper