To cook together in a very large skillet:
4 tbsp butter or bacon grease
1 medium onion, diced
.5-1 lb leftover cooked roast chopped small, with drippings (or alternately, use an equal weight of bacon)
Cook until onions are translucent and fragrant.
Mix together in bowl (or you could just do what I did and put in the pan while stirring a bunch!):
3/4 cup favorite bbq sauce
1/4 cup white vinegar
1/4 cup palm sugar (or brown)
6 oz can of tomato paste + one can water
2 tsp dry mustard powder
1 TBSP molasses
2 TBSP tamari sauce (which is gluten free soy sauce)
1 tsp liquid smoke
1/2 tsp liquid stevia extract (or add more brown sugar to taste)
Few shakes of garlic salt
3 cans of half drained bean of choice *or an equal amount of home prepared beans with an additional 1 cup water
Add mix to skillet and stir a bunch, on medium high heat for 5-8 minutes.
Transfer to buttered
baking dish, and bake for about an hour at 325 F, until the liquid is syrupy.
These babies aren't the most low carb thing out there, but watch your portion if you're into that kind of thing and you'll come out all right.