Beans Beans Beans

I am told this was served as a side dish when the Scavone siblings were kids, but it can also be a hearty and economical main dish. I'm also told they called it, "Beans Beans Beans...and meat." This recipe nearly fills a 2 1/2 qt. casserole (pictured).

1/2 lb bacon
1/2 lb hamburger
1 sm onion chopped
1 lg can pork & beans
1 can kidney beans, drained
1 can butter beans
1/2 c. sugar
1/2 c. brown sugar
1/4 c. ketchup
1 tsp. mustard

Brown bacon, hamburger and onion. Drain. Mix remaining ingredients in large bowl. Add meat mixture, turn into casserole dish and bake at 350° for 35-40 minutes.