Name: Keto Chicken Lasagna Casserole Recipe
Prep time: 15 min
Cook time: 15 min
Total time: 30 min
Cuisine: American
Ingredients: 2 cups shredded chicken; 1/2 medium onion, diced; 1 cup sliced mushrooms; 1 teaspoon garlic powder; 1 teaspoon Italian seasoning; 1 teaspoon salt; 4 tablespoons butter, divided; 1 cup chicken broth; 1 cup heavy whipping cream; 1 teaspoon xanthan gum; 1 cup shredded Monterey Jack cheese (for sauce); 1 box Natural Heaven Veggie Pasta Noodles; 1 cup chopped spinach; 1 cup shredded Monterey Jack cheese (for topping and layering)

Jump to Recipe· 4.2 from 47 reviews

If you're craving all the cozy satisfaction of traditional lasagna but want to keep things low carb and keto-friendly, this Keto Chicken Lasagna Casserole Recipe is an absolute game changer. Creamy, cheesy, and packed with tender chicken and fresh veggies, it delivers big on flavor and comfort without any of the guilt. Whether you're meal prepping for the week or cooking up a hearty dinner for your family, this casserole brings together simple ingredients in a way that feels indulgent yet clean and nutritious.

Ingredients You'll Need

The image shows the start of a layered dish in a pale pink square baking dish. The bottom layer is a creamy white sauce with small green spinach leaves mixed in, topped with shredded white cheese spread evenly over the sauce. On one side of the dish, four smooth rectangular sheets of pasta are laid flat in a row, partially covering the cheese layer. The dish sits on a dark cooking stove with a white marbled background visible around it. The photo taken with an iphone --ar 4:5 --v 7

Every ingredient in this recipe plays a crucial role in delivering the perfect combination of flavor, texture, and color. From the creamy sauce to the melty cheese and tender veggies, each component is thoughtfully selected to make this Keto Chicken Lasagna Casserole Recipe truly shine.

Shredded chicken: The protein-packed base that keeps the dish hearty and satisfying.
Natural Heaven Veggie Pasta Noodles: A low-carb noodle alternative that layers beautifully and adds a nice veggie boost.
Butter: Adds richness and helps sauté the vegetables to deepen their flavor.
Diced onion: Brings a subtle sweetness and aromatic depth.
Sliced mushrooms: Offer an earthy flavor and meaty texture.
Chopped spinach: Adds a pop of color and a healthy green element.
Garlic powder: Infuses the dish with warm, savory notes without overpowering.
Italian seasoning: A perfect herb blend that gives the casserole its classic lasagna vibe.
Salt: Balances flavors and enhances every ingredient.
Chicken broth: Forms the flavorful liquid base for the creamy sauce.
Heavy whipping cream: Makes the sauce luxuriously smooth and rich.
Xanthan gum: A keto-friendly thickener that gives the sauce just the right consistency.
Shredded Monterey Jack cheese: Melts to create gooey, cheesy layers that hold everything together.

How to Make Keto Chicken Lasagna Casserole Recipe

Step 1: Prepare the Vegetables and Chicken

Start by heating your skillet over medium heat and melting two tablespoons of butter. Toss in the diced onion and sliced mushrooms along with garlic powder, Italian seasoning, and salt. Saute until the mushrooms become tender and the onions are fragrant, which takes about 5 minutes. Then, add your shredded chicken and cook for an additional 2 minutes to marry all those flavors. Once done, transfer this savory mixture to a bowl and set aside.

Step 2: Make the Creamy White Sauce

Using the same skillet, melt the remaining butter and pour in the chicken broth. Let it gently simmer to concentrate the flavors. Slowly stir in the heavy whipping cream and allow the sauce to simmer for another two minutes. Now it’s time to sprinkle in the xanthan gum while stirring to thicken everything up nicely. Lower the heat and add half of the shredded Monterey Jack, stirring until melted and smooth. Finally, fold in your chicken and veggie mixture alongside the chopped spinach. Remove the skillet from the heat and get ready to assemble.

Step 3: Layer Your Casserole

Grab an 8x8 baking dish and start by layering the low-carb veggie pasta noodles evenly on the bottom. Next, spread a generous layer of the creamy chicken and spinach sauce over the noodles. Follow that with a layer of the remaining shredded cheese. Repeat this layering process once more so your casserole has two noodle layers topped with cheese. This stacking technique ensures every bite has that classic lasagna feel.

Step 4: Bake Until Bubbling and Golden

Pop your assembled casserole into a preheated 375-degree oven and bake for about 15 minutes. You’ll know it’s ready when the cheese on top is bubbling and lightly golden. Let it cool for a few minutes before you dig in — it needs that time to set so your slices hold together perfectly.

How to Serve Keto Chicken Lasagna Casserole Recipe

The image shows a baking dish filled with a layered casserole that has a golden-brown cheese topping, with some browned spots and melted texture over a creamy white base. Beneath the cheese layer, there are visible pieces of mushrooms and green herbs interspersed within a creamy mixture. The casserole is in a square, light purple baking dish placed on a wooden cutting board, with a white marbled surface behind it. The dish looks fresh and baked to a perfect finish photo taken with an iphone --ar 4:5 --v 7

Garnishes

To elevate your serving, sprinkle some freshly chopped parsley or basil on top. A light dusting of red pepper flakes can add a nice touch of heat, making the flavors pop without overshadowing the rich creaminess of the casserole.

Side Dishes

This Keto Chicken Lasagna Casserole Recipe pairs beautifully with a crisp green salad dressed in a tangy vinaigrette or some roasted low-carb vegetables like zucchini ribbons or asparagus to keep the meal light and balanced.

Creative Ways to Present

Looking to impress? Serve the casserole in individual ramekins for a charming, personalized touch. Or layer it in a clear glass baking dish so everyone can admire the beautiful layers of creamy chicken, noodles, and melted cheese before digging in.

Make Ahead and Storage

Storing Leftovers

Once cooled, transfer any leftover Keto Chicken Lasagna Casserole Recipe into an airtight container and store it in the refrigerator. It will stay fresh for up to 4 days, making it perfect for post-dinner meals or easy lunches.

Freezing

This casserole freezes amazingly well. Portion it into individual servings or keep it whole in a freezer-safe container. It can be frozen for up to 3 months without losing its delicious texture and flavor. Remember to thaw overnight in the fridge before reheating.

Reheating

For best results, reheat your casserole in the oven at 350 degrees until warmed through and the cheese is bubbly once again. If you’re short on time, the microwave works fine too—just heat in shorter intervals to avoid drying it out.

FAQs

Can I use a different type of cheese?

Absolutely! While Monterey Jack cheese melts beautifully and has a mild flavor, feel free to swap in mozzarella, cheddar, or a blend depending on your taste preferences. Just be sure to choose cheeses that melt well for that gooey texture.

Is there a substitute for xanthan gum?

If you don’t have xanthan gum, you can try using guar gum or a small amount of cream cheese to help thicken the sauce, but xanthan gum is ideal for keto recipes because it’s low carb and works consistently.

Can I make this recipe dairy-free?

To make it dairy-free, you can substitute the butter with coconut oil, use coconut cream instead of heavy cream, and choose a dairy-free cheese alternative. The texture will be a bit different but still delicious.

What is the carb count per serving?

This Keto Chicken Lasagna Casserole Recipe contains approximately 4 net carbs per serving, making it an excellent choice for low-carb or keto meal plans while still providing plenty of fat and protein.

Can I use regular pasta instead of veggie noodles?

While you can, the whole point of this recipe is to keep it low carb. Using traditional pasta will increase the carb count significantly, so it’s best to stick to the veggie pasta noodles or other low-carb alternatives.

Final Thoughts

There is something truly comforting about layering creamy, cheesy, and savory ingredients into a casserole that feels like a big warm hug on a plate. The Keto Chicken Lasagna Casserole Recipe brings together everything you love about classic lasagna with a keto twist, making it perfect for busy weeknights or special occasions. I can't wait for you to try it and see just how delicious and satisfying low-carb comfort food can be!