Maple Baked Beans

Source: http://www.tasteofhome.com/recipes/Maple-Baked-Beans-2

1 Onion, Chopped
2 T Vegetable Oil
3 Cans Baked Beans
1-1/2 t Ground Mustard
1 t Garlic Salt
1 C Maple Syrup

In a Dutch oven or large kettle, cook onion in oil until tender. Add the beans, mustard, and garlic salt. Cook over medium heat until bubbly, stirring occasionally. Add the maple syrup; heat through, stirring occasionally.