This is a great way to use up your left over BBQ. Or make some extra so you have some left over for making these quesadillas.

1 cup of BBQ sauce

1 cup of sour cream

1 tablespoon of olive oil

1 cup of chopped red onion

1/4 cup of butter

1 pound of shredded BBQ —pork, chicken or beef

1 cup of shredded cheddar cheese

1/2 cup of fresh cilantro leaves (optional)

8  (10 inch) tortillas