I am pleased to report that these stuffed shells can be frozen and then baked (directly from the freezer) and the results are AMAZING! To do so, first, make sure you have a casserole dish that allows you to go from the freezer to the oven. Then prepare the shells through step 6. Wrap the entire casserole dish twice with plastic wrap. Then wrap on top with foil. Freeze for up to one month. To reheat this dish, remove the plastic wrap and then cover the casserole dish with foil. Transfer directly to the oven and bake for 1 hour and 10 minutes. Remove the foil and bake for an additional 10 minutes.