As integral to a traditional Thanksgiving feast as the turkey, mashed potatoes don't often get a radical update, but now there’s a hack that will make them the star of the holiday meal without too much fuss. They can actually be made ahead of time and reheated without any problem. Of course, they’re never as good as freshly mashed, but when you have a million things on your to-do list, this quick tip might just make it worth it. In this recipe, cooked mashed potatoes are transferred to a casserole dish, sprinkled with Parmesan cheese, and baked until golden, creating a cheesy potato masterpiece. If you're the make-it-ahead sort of cook, the prepped (but not baked) mashed potatoes can be refrigerated for up to three days. On Thanksgiving, simply pop them in the oven as the turkey rests.
