If there is anything we love more than a classic holiday dinner it is the enjoyment we get from the leftovers. The “remains of the day” reheated and relished the next day is as much a holiday tradition as making your Mother’s cornbread dressing. Maybe it is the sense of relaxation the next day brings; the big day is over, and you can kick your feet back and either enjoy your company or enjoy the peace and quiet. If you didn’t bag it up and give it out after the dinner, you may be wondering what you can do with leftover turkey besides make the much-loved turkey sandwiches. With a few ingredients you probably already have in your freezer and pantry, you can make this rich and creamy dish, simply called Leftover Turkey Casserole. And if you don’t have any leftover turkey, a rotisserie chicken from the grocery store works great in this homey and satisfying recipe, too. Use penne, Cavatappi, or any other cylindrical shaped pasta which is sturdy enough to handle the cream sauce.