Sheri's Baked Beans

1 lb. bacon or real bacon bits
1 onion, chopped
2 cans pork and beans
1 can kidney beans
1 can butter beans
1/2 C, brown sugar
1 C. ketchup
1 T. liquid smoke
3 T. vinegar

Cook the bacon and sauté the onions in the bacon grease.  Or if you're using the bacon bits, sauté the onions in some butter.  Drain the liquid off the kidney beans and butter beans, combine with all the other ingredients.  Cook in a crockpot for about 4 hours, or in the oven at 350 for about an hour.