20+ Ultra-Comforting Low-Carb Casseroles

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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

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.

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.

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2 / 23
Chile Relleno Casserole
All the big flavors of a classic chile relleno without the deep frying.
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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.
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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.
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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.
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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.
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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.
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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.
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9 / 23
6-Ingredient Vegan Enchilada Casserole
Opt for low-carb tortillas to keep this light yet satisfying casserole within your dietary needs.
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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.
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11 / 23
Loaded Cheesy Cauliflower Bake
This cheesy cauliflower casserole is filled with crispy bacon bits and scallions.
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12 / 23
Eggplant Lasagna
This cheesy, saucy, yet light lasagna uses eggplant slices in place of noodles for a perfect low-carb dinner.
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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.
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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!
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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.
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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.
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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.
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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.
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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!
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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.
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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.
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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.
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23 / 23
Cheesy Meatball Casserole

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

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