1 (8 oz.) pkg. bacon, diced
2 med. onions, chopped
1/2 c. packed brown sugar
1/2 c. vinegar
1 tsp. garlic salt
1 tsp. dry mustard
1 tsp. salt
1 (16 oz.) can baked beans
1 (16 oz.) can kidney beans, drained
1 (16 oz.) can chick peas or garbonzo beans, drained
1 (16 oz.) can green lima beans, drained
1 (16 oz.) can butter beans, drained

About 1 1/2 hours before serving: In large skillet over medium heat, fry bacon and onion until tender, stir in brown sugar, vinegar, garlic salt, mustard and salt. Reduce heat to low and simmer, cover for 20 minutes.

Meanwhile, preheat oven to 350 degrees. In a 3 quart bean pot or casserole dish, combine all beans. Spoon onion-bacon mixture evenly over top. Bake for 1 hour or until hot and bubbly.