BBQ Black Bean Burrito

Jason and Megan got this idea from El Pollo Loco and perfected the recipe! Thanks guys!
I may have changed some things up a bit because I never saw how they made it, I just have the list of ingredients! So here is how I do it:
In the crockpot, add the following ingredients:
1 small onion, diced
1/2 tsp garlic, minced
2 cans of black beans, undrained
1 cup bbq sauce
1/4 tsp liquid smoke
2 boneless skinless chicken breasts
Cook all day on low.
Make some spanish rice or white rice on the stove or in the rice cooker.
Fill tortillas with rice and chicken mixture and add cheese, salsa, guacamole and sour cream... whatever you like!