17 Keto Thanksgiving Casseroles That Steal the Show

Thanksgiving doesn’t have to mean abandoning your keto lifestyle. These low-carb casseroles prove you can enjoy all the comfort and tradition of the holiday while staying true to your goals.

From reimagined classics to creative new favorites, these dishes deliver all the rich, satisfying flavors you crave without the carb overload. Your guests might not even realize they’re eating keto-friendly versions – they’re just too busy going back for seconds.

Keto Green Bean Casserole with Crispy Onions

This beloved Thanksgiving staple gets a keto makeover that’s every bit as satisfying as the original. Fresh green beans are smothered in a rich, creamy mushroom sauce that’s thickened with cream cheese instead of flour. The crispy onion topping uses thinly sliced onions or pork rinds for that essential crunch.

It tastes just like the classic version your family expects, but without the carbs. The prep is straightforward, and you can assemble it ahead of time for easy holiday cooking.

Cauliflower Mac and Cheese Casserole

Tender cauliflower florets swim in an incredibly rich and cheesy sauce that rivals any traditional mac and cheese. The secret is using multiple cheeses and heavy cream to create that signature gooey texture. Each bite delivers that comforting, nostalgic flavor without any pasta in sight.

The cauliflower holds up beautifully to baking and absorbs all those delicious cheesy flavors. It’s surprisingly filling and even non-keto family members will be impressed. This one’s a guaranteed crowd-pleaser that’s simple enough for busy holiday schedules.

Keto Broccoli Rice Casserole

Cauliflower rice takes the place of regular rice in this creamy, cheesy casserole that’s loaded with tender broccoli. The “rice” texture is surprisingly convincing, especially when mixed with plenty of cheese and cream. Fresh broccoli adds color, nutrients, and that perfect bite texture that makes this casserole satisfying.

The cheese sauce is rich and indulgent, making it feel like a true comfort food. It’s easy to prepare and reheats beautifully, making it perfect for meal prep or potluck contributions.

Keto Cheesy Scalloped Turnips

Thinly sliced turnips are layered with a rich, cheesy cream sauce, then baked until tender and golden for a comforting, low-carb twist on classic scalloped potatoes. The turnips soften into a melt-in-your-mouth texture that soaks up the flavors of garlic, cream, and melted cheese.

Each bite delivers that familiar indulgence of traditional scalloped dishes without the carbs. Perfect as a hearty side for holidays or weeknight dinners, this dish is simple to prepare yet feels special enough for any occasion.

Keto Stuffing Casserole with Pork Rinds

Crushed pork rinds replace bread cubes in this creative take on traditional stuffing. The pork rinds absorb all the savory flavors from herbs, celery, and onions, creating a surprisingly authentic stuffing experience. It has that perfect combination of crispy edges and tender interior that makes stuffing so irresistible.

The umami from the pork rinds actually enhances the overall flavor profile. It’s easy to make and can be prepared ahead of time, making your Thanksgiving dinner prep much smoother.

Cheesy Cauliflower Gratin

Layers of tender cauliflower are smothered in a rich, cheesy cream sauce and baked until golden and bubbly. The top develops a beautiful golden crust while the interior stays creamy and indulgent. Multiple types of cheese create complex flavors that make this feel like a special occasion dish.

The cauliflower becomes incredibly tender and absorbs all the creamy goodness. It’s elegant enough for company but simple enough for weeknight dinners. This casserole reheats beautifully and actually tastes even better the next day.

Keto Brussels Sprouts Casserole with Bacon

Brussels sprouts and bacon are a match made in heaven, and this casserole showcases that perfect partnership. The sprouts become tender and sweet when baked, while crispy bacon adds smokiness and crunch. A heavy cream sauce ties everything together without overwhelming the vegetables.

Even Brussels sprouts skeptics will be converted by this rich, indulgent version. The bacon fat adds incredible flavor throughout the dish. It’s simple to prepare and makes an impressive side dish that feels both healthy and decadent.

Low-Carb Squash Casserole

Yellow squash and zucchini create a light, fresh casserole that’s perfect for balancing heavier holiday dishes. The squash has a tender texture that pairs beautifully with herbs and cheese. This casserole has a more delicate flavor profile that won’t compete with your main dishes. It’s incredibly easy to make and uses simple, accessible ingredients.

The vegetables release some moisture during cooking, creating a naturally creamy texture. This is perfect for people who want something lighter but still satisfying on their holiday table.

Keto Creamed Spinach Casserole

Rich, creamy spinach gets transformed into an elegant casserole that’s worthy of any holiday table. The spinach is cooked in a luxurious cream sauce with garlic and herbs that make it irresistibly savory. A cheese topping adds extra richness and creates a beautiful golden top when baked.

This feels like restaurant-quality food but is surprisingly simple to make at home. The spinach retains its vibrant color and fresh flavor despite being thoroughly cooked. It’s a sophisticated side dish that pairs well with any main course.

Keto Zucchini Gratin

Thinly sliced zucchini layered with cream and cheese creates an elegant, European-inspired casserole. The zucchini becomes incredibly tender and almost melts in your mouth. Each layer absorbs the rich cream sauce, creating amazing depth of flavor. The top gets golden and slightly crispy while the interior stays silky smooth. It’s surprisingly filling despite being mostly vegetables.

This casserole looks impressive enough for company but is actually quite simple to assemble. The flavors develop beautifully during baking, making it taste much more complex than it actually is.

Low-Carb Mushroom and Sausage Casserole

Earthy mushrooms and savory sausage create a hearty, protein-rich casserole that’s incredibly satisfying. The mushrooms release their natural umami flavors while the sausage adds richness and substance. A creamy sauce binds everything together without masking the bold flavors. This casserole has a rustic, comforting feel that’s perfect for cold weather. It’s easy to customize with different mushroom varieties or sausage types.

The prep is straightforward, and it reheats beautifully for leftovers. This one appeals especially to meat lovers who want something substantial.

Keto Creamy Cabbage Casserole

Tender cabbage gets transformed into a surprisingly elegant casserole that’s both creamy and satisfying. The cabbage becomes sweet and mild when cooked slowly, losing any bitterness. A rich cheese sauce makes this feel indulgent rather than diet-like. It has a comfort food quality that makes it perfect for holiday gatherings. The cabbage holds its shape well during baking, creating nice texture contrast.

This is an economical option that feeds a crowd without breaking the budget. Most people are surprised by how delicious cabbage can be when prepared this way.

Cheesy Broccoli and Cauliflower Casserole

The classic combination of broccoli and cauliflower gets elevated with a rich, cheesy sauce that makes vegetables irresistible. Both vegetables retain their distinct textures and flavors while being unified by the creamy cheese sauce. The different colors create a beautiful presentation that looks festive on holiday tables. It’s packed with nutrients but tastes like pure comfort food.

The cheese sauce is rich enough to convert even the pickiest vegetable eaters. This casserole is simple to make and always gets rave reviews from both kids and adults.

Keto Turnip Au Gratin

Thinly sliced turnips layered with cream and cheese create a sophisticated casserole reminiscent of potato gratin. The turnips become tender and sweet when slow-cooked in cream, developing flavors similar to potatoes. Each layer absorbs the rich cream sauce, creating incredible depth of flavor. The top develops a beautiful golden crust that adds textural interest.

Most people can’t tell these aren’t potatoes, especially when they’re cooked to perfection. It takes a bit more time than some casseroles, but the elegant results are worth the extra effort.

Low-Carb Asparagus Casserole

Fresh asparagus spears are nestled in a creamy, cheesy sauce that highlights their natural flavor without overwhelming it. The asparagus retains a slight crunch that provides nice textural contrast to the smooth sauce. This casserole feels light and fresh, making it perfect for balancing heavier holiday dishes.

The bright green color adds visual appeal to your dinner table. It’s quick to assemble and bakes relatively fast compared to other casseroles. This is ideal for people who want something elegant but not too heavy during the holidays.

Keto Creamed Leeks and Mushroom Gratin

Tender leeks and savory mushrooms are baked in a luscious cream sauce, creating a gratin that feels both elegant and comforting. As the leeks cook, they turn sweet and buttery, pairing perfectly with the earthy richness of mushrooms. A blend of cream and cheese brings everything together into a smooth, indulgent base, while the gratin topping adds a golden, lightly crisp finish.

With its refined flavors and beautiful presentation, this dish stands out from typical holiday casseroles—ideal for impressing guests or elevating a cozy dinner.