You can store your Tacos Al Pastor in an airtight container in the refrigerator for up to 3-4 days. To reheat, you can either microwave the filling until hot or warm it up on the stove in a pan. The tortillas can be warmed in the microwave or on a skillet. If you plan to freeze the Tacos Al Pastor, it's best to store the filling and tortillas separately to maintain the best quality. When you're ready to eat, simply thaw the filling and tortillas in the refrigerator overnight and reheat as desired.