Before your Dad became ill and we went on the diet, we liked the following casserole.

Calico Beans

6 slices bacon
½ pound ground chuck
1 medium-size onion, chopped  (½ cup)
½ cup catsup
1 teaspoon salt
¾ cup firmly packed brown sugar
1 teaspoon dry mustard
2 teaspoons vinegar
1 can (16 ounces) pork and beans
1 can 16 ounces) kidney beans
1 can (16 ounces) butter beans

1.  Cook bacon in a large skillet until crisp; remove to paper toweling to drain; crumble.
2.  Cook beef in fat remaining in skillet until no pink remains.  Add onion; sauté just until tender.
3.  Combine beef, onion, catsup, salt, brown sugar, mustard and vinegar in a 3 quart baking dish.  Partially drain all the beans; add to baking dish, stirring gently to mix.  Sprinkle with bacon.
4.  Bake in moderate oven (350) for 40 minutes.