1 can pork and beans
1 can butter beans, drained
1 can great northern beans, drained
1 can kidney beans, drained and rinsed
1 medium onion, chopped
1 ½ C catsup
½ C brown sugar
1 to 2 tsp prepared mustard
1 pkg. little smokie link sausage (optional)
Mix all together and bake at 350 for 45-60 minutes or until bubbly.