You can freeze enchiladas before or after baking! If you are freezing the enchiladas before baking them, do not top with sauce. Stop after step 7 and wrap up the dish tightly with tin foil and freeze for up to 3 months. When ready to enjoy, thaw overnight in the fridge and continue through step 8. If you freeze with the sauce on top, it will make the tortillas soggy when thawing.  To freeze baked vegetarian enchiladas, let the pan cool completely, then cover tightly with tin foil and freeze. Let thaw overnight, then reheat in the oven when ready to enjoy.