Amazing Baked Beans

Ingredients:
1 medium onion
1 T. oil
2 cans of baked beans
1 can of crushed pineapple, drained
1/2 c. packed brown sugar
1/4 c. ketchup

Preparation:
Dice and cook the onion in a skillet with oil until soft.  Mix onion and all remaining ingredients in a large bowl, then transfer to a 9x13 in. baking dish.  Cover and bake at 350 degrees for 20 minutes.  Uncover; bake 25-35 minutes until bubbly and beans reach desired thickness.