Barbecue Beans

Ingredients

• 1/2 lb. bacon, diced
• 1 large onion, diced
• 1 c. ketchup
• 2 tsp. vinegar
• 1 lb. can lima beans
• 1 lb. ground beef
• 1/2 c. brown sugar
• 1 tsp. dry mustard
• 1 lb. can pork and beans
• 1 lb. can kidney beans
• 4 Tbsp. butter, melted in a 13 x 9 x 2-inch pan
• 3 eggs, slightly beaten
• 1 c. flour
• 1 c. milk
• 1 tsp. salt
• 1 tsp. baking soda
• 1 lb. Swiss cheese, shredded
• 1 pkg. (10 oz.) frozen chopped spinach, thawed and drained