The Kitchen hosts a star-studded Thanksgiving with Food Network's Nancy Fuller and Valerie Bertinelli. Geoffrey Zakarian makes his Lemon and Herb Roasted Turkey, Nancy shares her creamy Root Vegetable One-Dish side, and everyone adds their favorite ingredient to the Ultimate Mac and Cheese. Valerie covers dessert and drinks with her Pumpkin Pie with homemade whipped cream and Berry Kir Royale. To ensure the big meal goes off without a hitch, The Kitchen Helpline is open for Turkey Day questions, and guests show how to plate turkey.