World Famous Baked Beans

1 lb Ground Chuck
1/2  bottle sweet BBQ sauce (I really like the new Kraft Chipotle BBQ Sauce)
1 Large can Van Camps or Bush's baked beans
1/3 cup brown sugar
(Optional - smoked sausage links, cut into small pieces)

Brown hamburger (and optional smoked sausage).  Mix with other ingredients and bake at 275 for 1 hour or until brown and bubbly on top.