Cook on high 4-6 hours or low 6-8 hours. Now it looks too liquidy, but trust me, it's fine. Shred chicken and mix around in the sauce.
Divide chicken between tortillas, add cheese if using. Roll up tortillas and either eat now, or wrap in plastic wrap and freeze for quick meals later. Just take out of the plastic wrap and microwave on a paper towel for a few minutes. If you are eating it fresh, you can add other toppings like lettuce and tomatoes, but I would not put those in the ones for the freezer.
Told you it was easy!