19 Thanksgiving Casseroles You Can Make Ahead of Time

November 03, 2020

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Make cooking Thanksgiving a little easier with these make-ahead casserole recipes. You can easily prep parts of the casserole, if not the whole thing, a few days ahead of the big meal. Whether it’s riffs on the classic side dishes like Vegan Scalloped Potatoes or Cornbread & Oyster Mushroom Stuffing, these casseroles are healthy, seasonal and delicious.

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Instant Pot Sweet Potato Casserole

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Use any multicooker or electric pressure cooker to make this classic Thanksgiving side dish. The sweet potatoes get perfectly tender and almost caramelized while cooking under high pressure, plus using your multicooker saves stovetop and oven space.

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Cornbread & Oyster-Mushroom Stuffing

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Mushrooms are a rich, meaty addition in this healthy cornbread stuffing recipe. Here we use oyster mushrooms, but you can use any variety you like. If you have time, bake the cornbread a day or two in advance so it has time to dry out a bit, which lets it absorb the flavors more readily.

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Cauliflower Casserole with Mixed-Seed Crust

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The cheesy-seedy crust that tops this healthy cauliflower casserole recipe evokes everything bagels. Serve for the holidays or as a hearty side dish with roast chicken.

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Vegan Scalloped Potatoes

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These scalloped potatoes are surprisingly rich and creamy even though they're made with no dairy (milk, butter or cheese)--vegan comfort food at its best. We use almond milk, herbs and spices to make a flavorful sauce and finish the dish with a crunchy almond topping. This makes a satisfying side dish if you're cooking for dairy-free or vegan diets.

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Healthy Green Bean Casserole

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Typical green bean casseroles bathe ingredients in a heavy cream sauce and top them with buttered breadcrumbs or cheese. Our healthier version saves about 160 calories and 12 grams of saturated fat compared to a traditional recipe.

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Cauliflower-Broccoli Gratin

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This creamy broccoli-and-cauliflower casserole is a hassle-free side dish that just about everyone loves. Our healthier version skips the heavy cream and butter found in most recipes--saving about 160 calories and 12 grams of saturated fat compared to a traditional version.

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No-Sugar-Added Sweet Potato Casserole

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Instead of loading up this comfort food side with tons of brown sugar and marshmallows, we have turned to sweet spices, vanilla and inherently sweet dried fruit to enhance the natural sweetness of the sweet potatoes. A topping of pecans and pepitas replaces traditional marshmallow topping to keep it healthy and add texture and color for a beautiful casserole.

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Scalloped Sweet Potatoes

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If you're looking for a twist on classic scalloped potatoes, this recipe using roasted sweet potatoes and melty Gruyère has all the creaminess of the original with a new flavor twist. The sweet potatoes and lightened sauce--made with flour and low-fat milk--keep it healthier than butter- and cream-laden versions. Don't cut your sweet potatoes too thin--they'll turn mushy under the sauce.

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Creamed Spinach Casserole

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This creamy spinach casserole recipe is a more sophisticated cousin to creamed spinach. It's perfect for weekend entertaining or as a holiday side dish.

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Meringue-Topped Sweet Potato Casserole

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This lightened-up take on the classic Thanksgiving sweet potato casserole is spiked with crushed pineapple and toasted pecans. We top it with an airy, slightly sweet meringue. You can pipe the meringue to make it look fancy or simply spread it neatly with a rubber spatula.

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Cornbread Stuffing with Brussels Sprouts & Squash

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Brussels sprouts and winter squash make this cornbread stuffing look and taste great. You may need to bake two batches of cornbread to have 2 pounds for this recipe--you can even make it the day before.

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Carrot-Parsnip Gratin

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Make this creamy carrot-and-parsnip casserole for your next holiday meal--everyone will beg you for the recipe! Our healthier version skips the heavy cream and butter found in most recipes--saving about 160 calories and 12 grams of saturated fat compared to a traditional version.

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Mashed Celeriac & Potato Casserole

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Celeriac adds a bright celery-like flavor and lightens the texture in this healthy mashed potato casserole. The fried shallots are reminiscent of the crispy onions that top a green bean casserole.

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Wild Rice Stuffing with Apple & Sausage

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This amazing wild-rice stuffing recipe is bursting with rustic fall flavors, including rye bread, sausage, apples, dried cherries, pecans and fresh herbs.

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Brussels Sprout Gratin

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A creamy Brussels sprouts casserole is a delightful accompaniment to any holiday meal. Our healthier version skips the heavy cream and butter found in most recipes--saving about 160 calories and 12 grams of saturated fat compared to a traditional version.

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Hasselback Sweet Potatoes with Marshmallows

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These hasselback sweet potatoes are like mini marshmallow-topped sweet potato casseroles drizzled with sage-infused butter. The hasselback technique, slicing the potato but leaving it whole, makes for a tender potato with a crispy top--the best of both worlds.

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Butternut Squash Gratin

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Roasted butternut squash slices layered with a creamy sauce and topped with golden breadcrumbs makes a hassle-free side dish that just about everyone loves. Our healthier version skips the heavy cream and butter found in most recipes--saving about 160 calories and 12 grams of saturated fat compared to a traditional version.

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Layered Mashed Potato & Mushroom Casserole

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Fancy up regular mashed potatoes with a layer of mushroom duxelle--a sauté of finely chopped mushrooms and shallots. We omitted the traditional butter in the duxelle and added chard for a nutritional boost. Serve this hearty side in place of mashed potatoes at any holiday feast or enjoy it as a vegetarian main dish.

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Sweet Potato Casserole

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This scrumptious sweet potato casserole gets fabulous flavor from honey and freshly grated orange zest rather than the traditional stick of butter. To complete the healthy makeover we sprinkle a crunchy pecan streusel spiked with orange juice concentrate over the top. You can save the marshmallows for s'mores.

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