Baked Bean Cassoulet

INGREDIENTS:

8 sl Bacon; fried, drained and
-crumbled
1 Onion; cut in rings
1/2 c Brown sugar
1 ts Dry mustard
1/2 ts Garlic salt
1 ts Salt
1/2 c Vinegar
1 cn (16-oz) lima beans
1 cn (16-oz) kidney beans
1 cn (16-oz) New England style
-baked beans