To prepare the enchiladas, you will need a glass casserole dish or disposable pans. I add a little sour cream sauce to the baking dish to prevent the enchiladas from sticking.
Yes. White chicken enchiladas are one of the only Mexican food items that can be frozen. I prepare the enchiladas up to the point of baking them, cool them in the refrigerator, and then seal them tightly with saran wrap, followed by foil.