The best way to reheat this recipe is to reheat it in the oven at 350 degrees. The best way to reheat this recipe is to reheat it in the oven at 350 degrees. Be sure to cover a baking dish with aluminum foil, and you may even want to add some additional cheese on top. If you have 4 or more portions heat for about 20 minutes, if you have 2 portions 10 to 15 minutes is all that is needed.