20+ Ultra-Comforting Low-Carb Casseroles

Melissa Harrison Jameson

updated Jun 2, 2023

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Photograph of Chile Relleno Casserole in baking dish and one slice on a plate with side dish of sauce on a marble countertop. — Credit: Meleyna Nomura
Poblano Chile Relleno Casserole

It’s hard to say no to a warm, ultra-comforting dinner. Huge bonus points if it can be prepped mostly in one dish, leave behind leftovers, and pack a ton of flavor. That’s why casseroles will never go out of style. So prepare your trusty casserole dish because we’re sharing 23 ultra-comforting casseroles that are low on carbs and big on flavor.

Each of these low-carb casserole recipes are proof you don’t need pasta, rice, or bread to make an ultra-cozy and totally crave-worthy dish. So whether you’re following a low-carb diet or just looking to switch things up in the kitchen tonight, you’ll find plenty of dinner inspiration here — all of which fully deliver on taste. Here’s a list of low-carb casserole recipes to try when you’re looking for some ideas.

Le Creuset 2.75-qt. Rectangular Casserole Dish with Platter Lid

Bed Bath & Beyond

23 Low-Carb Casseroles

1 / 23

Easy Breakfast Casserole

This easy-assembly, crowd-feeding breakfast casserole loaded with the works: cheddar cheese, diced ham, bell pepper, shredded potatoes, and eggs.

2 / 23

Chile Relleno Casserole

All the big flavors of a classic chile relleno without the deep frying.

3 / 23

Ground Beef Taco Casserole

This recipe is everything you love about classic ground beef tacos baked into an easy casserole, then topped with lettuce, tomato, and shredded cheddar.

4 / 23

Zucchini Lasagna

This low-carb lasagna swaps thin-sliced zucchini for lasagna noodles, which shifts the emphasis to the best parts of lasagna: the tomato sauce, the cheese, the veg.

5 / 23

Make-Ahead Spinach and Feta Egg Casserole

Filled with leafy spinach and chunks of crumbled feta, and laced with fresh dill, this egg casserole just might remind you of spanakopita.

6 / 23

BBQ Chicken Casserole

This Paleo-friendly weeknight casserole is loaded with shredded chicken breast and riced cauliflower, laced together with a homemade BBQ sauce.

7 / 23

Brussels Sprout Casserole

While this casserole can totally play comforting side dish, it's got enough crispy bacon and gooey cheese involved to be a winning main dish, too.

8 / 23

Cauliflower & Chicken Sausage Casserole

While the bread crumb topping lends wondering crunch to this casserole, leave it off to keep it low-carb. Instead, double the Parmesan cheese and sprinkle it on without the bread crumbs.

9 / 23

6-Ingredient Vegan Enchilada Casserole

Opt for low-carb tortillas to keep this light yet satisfying casserole within your dietary needs.

10 / 23

Crock-Pot Egg Casserole

This Crock-Pot egg casserole is loaded with veggies, ham, and cheese. It's the perfect overnight hot breakfast or lazy dinner.

11 / 23

Loaded Cheesy Cauliflower Bake

This cheesy cauliflower casserole is filled with crispy bacon bits and scallions.

12 / 23

Eggplant Lasagna

This cheesy, saucy, yet light lasagna uses eggplant slices in place of noodles for a perfect low-carb dinner.

13 / 23

Shredded Zucchini and Fontina Casserole

Melty Fontina and creamy ricotta cheeses, along with fresh basil, give this casserole an elegant Italian-inspired twist. This is another one where you can easily skip the bread crumb topping.

14 / 23

Veggie Supreme Egg Bake

This casserole is a delicious way to load your plate with veggies. Spinach, peppers, potatoes, and mushrooms all make an appearance!

15 / 23

Baked Spaghetti Squash Carbonara

This low-carb casserole hits every note you look for in the best spaghetti carbonara: peppery, creamy, bits of rich bacon mixed in.

16 / 23

Egg and Chorizo Egg Casserole

Serve squares of this baked omelet with greens or your favorite taco toppings for dinner, then enjoy the rest for breakfast the next morning.

17 / 23

Broccoli and Cheese Spaghetti Squash Casserole

Tender strands of spaghetti squash are tossed with crisp-tender broccoli and enveloped in a fluffy, cheesy custard, giving you all the best parts of the classic side wrapped up into a feel-good, veggie-packed main.

18 / 23

Cheesy Southwestern Chicken Casserole

This comforting Southwest chicken bake is sure to satisfy. It's comprised primarily of canned goods and a store-bought rotisserie chicken, meaning most of the work is already done for you.

19 / 23

Squash and “Tuna Melt” Casserole

Let’s all just acknowledge that we love tuna melts, shall we? Here we capture the tuna-cheese flavor combo that is so good, and apply it to summer squash as a way to make a tuna melt more nutritious...and summer squash more flavorful!

20 / 23

Sausage, Artichoke & Goat Cheese Egg Bake

It doesn't matter whether you serve it up for breakfast, lunch, or dinner, this loaded egg casserole hits the spot.

21 / 23

Eggplant Casserole

With layers of herbed ricotta cheese, quick homemade marinara, meaty yet super creamy and tender eggplant, and a gooey cheesy top, this eggplant casserole is a must-make dinner.

22 / 23

Zucchini and Squash Casserole

In this recipe, very simple ingredients come together in the oven to create an irresistible dish more delicious than the sum of its parts.

23 / 23

Cheesy Meatball Casserole

This quick and easy meatball casserole is topped with lots of melted cheese.

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