Mashed Potato Casserole

I can't believe that no one has rated this recipe. It is just fabulous. I use it to entertain and during the Thanksgiving or Christmas holidays. It is excellent and a keeper. I have been making it over and over again since I found it in my SL magaizine 1999.

This is a good recipe to make the night before you need to serve it. I prepare as directed and put in refrigerator. The next day, I put a few pats of butter on top and bake, adding 8-10 extra minutes to baking time or let sit at room temperature before baking.