1.  In a large saucepan over medium heat, add the vegetable oil, onion, and green pepper.
2.  Sauté, stirring often, until onions are tender (about 5 minutes).
3.  Stir in the BBQ and beans.
4.  Cook, stirring occasionally, until beans and meat are hot (about 8-10 minutes).
5.  Sprinkle with cheese before serving.