Keto chicken cordon bleu casserole is a low carb dinner made with cauliflower, ham, and chicken, smothered in a delicious dijon cheese sauce.

cheesy Keto Chicken Cordon Bleu Casserole on a spoon

Chicken cordon bleu is one of our favorite meals. But traditional recipes are made using breaded chicken, which means you can’t typically enjoy the dish on a keto diet.

We made this recipe so we could enjoy the flavor of the classic chicken without going over our macros. 

Like the original, it is full of comforting flavor and gooey cheese so we took our delicious keto alfredo sauce that we use on our keto chicken alfredo casserole and keto chicken and broccoli alfredo casserole and we added Gruyere cheese and dijon mustard.

It’s decadent and indulgent feeling but it is also low on carbs, which makes it a perfect keto comfort food.

If you’re looking for more easy keto recipes make sure to check out our most popular keto chicken recipes!

Note: This post may contain affiliate links. That means if you click on a link and make a purchase we may receive a small commission. Thank you!

ingredients for Keto Chicken Cordon Bleu Casserole

Ingredients You’ll Need

Here’s a list of all the ingredients you need to make this rich comfort food:

  • Cauliflower florets – To save time, you can purchase already cut florets from your local store.
  • Chicken breast – We use boneless and skinless chicken for this recipe.
  • Ham – You can use your favorite variety or brand. Just make sure to check the nutrition facts some ham has sweet sauces like maple syrup or honey on the outside. You want to choose something with the least carbs possible.
  • Spices – You’ll need onion powder, garlic powder, salt, and pepper.
  • Other flavors – Fresh garlic and Dijon mustard add additional flavor to the casserole.
  • Butter 
  • Heavy cream – Heavy cream gives the casserole a rich, decadent sauce.
  • Cheeses – You’ll need both Gruyere cheese and mozzarella cheese. If you can’t find Gruyere cheese you can substitute it with a mild swiss.
Keto Chicken Cordon Bleu Casserole garnished with chopped parsley

Instructions

Here’s what you need to do to make this casserole.

Step 1 – Prep the cauliflower. To start, place the cut cauliflower in a microwave safe bowl with 1 cup of water. Cover with a damp paper towel and microwave on high for approximately 3 to 5 minutes or until the cauliflower is fork tender.

The cauliflower is going to continue to cook in the oven so it should be just tender enough for the fork to push into it. Don’t over steam it or it will get mushy in the oven. 

Once it has steamed, drain the cauliflower completely and  pat dry with a paper towel. Set aside.

Step 2 – Cook the chicken. Cut the chicken breast into 1-inch pieces and sprinkle with onion powder, garlic powder, salt, and pepper.

Next, add olive oil and the chicken to a skillet set over medium high heat. Cook for approximately 10 minute or until chicken is cooked through. Set aside.

Step 3 – Make the cream sauce. Before starting the sauce, preheat the oven to 350 degrees F.

As the oven heats, clean the skillet by removing any burnt bits from the pan and then melt 3 tablespoons of butter over medium heat. 

When the butter has melted, add the garlic to the pan and cook for 1 minute or until fragrant.

Next, pour the heavy cream into the pan and bring it to a simmer over medium heat. As the cream cooks, make sure to stir often so the cream doesn’t burn.

Stir in the Dijon mustard and then add 6 ounces of Gruyere cheese. Keep stirring until the cheese sauce begins to thicken. This will take about 8 to 10 minutes. You will know it is ready when the sauce is thick enough to coat the back of your spoon.

Once thickened, add 3 ounces of mozzarella cheese to the sauce and stir until it is melted and the sauce is smooth. Turn the heat to low and keep the sauce warm while you assemble the casserole.

Step 4 – Assemble the casserole and bake. Prepare a 13×9 inch casserole dish by spraying it with non-stick spray and then spread ½ cup of the cheese sauce on the bottom.

Next add half of the cauliflower to the dish, making a layer of it on the bottom of the dish. Top the cauliflower with half of the cooked chicken and half of the ham. You can allow the meat to fill in the spaces between the cauliflower to fill the dish.

Pour ½ of the remaining cheese sauce over the cauliflower, chicken, and ham and sprinkle 5 ounces of Gruyere and 3 ounces of mozzarella cheese on top.

Repeat the steps using the remaining cauliflower, chicken, and ham to make a second  layer. 

Finally, pour the remaining cheese sauce over the top of the casserole, followed by the remaining 5 ounces of Gruyere cheese. Place in the oven and bake for 30 minutes or until the casserole is warmed through and the cheese is fully melted.

Keto Chicken Cordon Bleu Casserole on a spoon

Make Sure to Dry Your Cauliflower 

Drying your cauliflower is an important step that you should not skip! 

Cauliflower releases a lot of water when it cooks, which is one of the reasons we steam it first. Steaming helps to release some of the moisture before placing it in the casserole. 

Before adding to the casserole, make sure you thoroughly strain and pat the florets dry. The more moisture you remove helps to prevent the casserole from becoming watery.

How to Store It 

Storing the casserole is super easy! First, allow the casserole to cool completely. 

Place the cooled casserole in an airtight container and refrigerate for up to about 4 to 5 days. 

To reheat, preheat your oven to 325 degrees F and cook for about 10 to 15 minutes or until it is heated through. 

Or you can warm up an individual portion in the microwave. To do this, cook on high in a microwave safe bowl for about 2 to 3 minutes. 

We don’t recommend freezing this dish. When cauliflower freezes, it becomes mushy when defrosted and reheated. cheese sauce also tends to break apart when frozen, so it is best to enjoy it when it is fresh.

Keto Chicken Cordon Bleu Casserole on a spoon

Looking for More Easy Keto Recipes?

Like this recipe?
Follow Home. Made. Interest. on Pinterest and Instagram
to keep up with the latest recipes.

Servings: 10
Prep Time: 15 mins
Cook Time: 1 hr 10 mins
Total Time: 1 hr 25 mins

Keto Chicken Cordon Bleu Casserole

Keto chicken cordon bleu casserole is a rich and comforting recipe with a fraction of the carbs. Cauliflower, ham, and chicken smothered in a delicious dijon cheese sauce makes the perfect low carb casserole.
Keto Chicken Cordon Bleu Casserole on a spoon
Print Recipe
4.74 from 19 votes

Ingredients

  • 16 ounces Cauliflower florets, cut into bite-size pieces
  • 24 ounces Chicken breast
  • 12 ounces Ham, cut into small cubes
  • 1 teaspoon Onion powder
  • 1 teaspoon Garlic powder
  • ½ teaspoon Salt
  • ¼ teaspoon Pepper
  • 3 tablespoons Butter
  • 2 cloves Garlic
  • 2 cups Heavy cream
  • 4 tbsp Dijon mustard
  • 16 ounces Gruyere cheese, grated and divided
  • 9 ounces Shredded mozzarella cheese, divided

Instructions

  • Steam the cauliflower. Place cut cauliflower in a microwave safe bowl with 1 cup of water. Cover with a damp paper towel and microwave on high for approximately 3-5 minutes or until the cauliflower is fork tender. Don’t overcook!
  • Drain the cauliflower pat dry with a paper towel. Set aside.
  • Cut the chicken breast into 1-inch cubes and sprinkle with onion powder, garlic powder, salt, and pepper.
  • In a skillet over medium high heat add your olive oil and the cubed chicken. Cook for approximately 10 minute, or until chicken is cooked through. Set aside.
  • Preheat oven to 350 degrees F.
  • Clean the skillet, removing any burnt bits from the pan and then melt 3 tablespoons of butter in the skillet over medium heat.
  • Once butter has melted add the garlic to the pan and cook for 1 minute.
  • Pour the heavy cream into the pan and bring it to a simmer over medium heat. Make sure to stir often so the cream doesn’t burn.
  • Stir in the Dijon mustard and then add 6 ounces of Gruyere cheese. Keep stirring until the cheese sauce begins to thicken, approximately 3-5 minutes. You will know it is ready when the sauce is thick enough to coat the back of your spoon.
  • Add 3 ounces of mozzarella cheese to the sauce and stir until it is melted and the sauce is smooth. Turn the heat to low and keep the sauce warm while you assemble the casserole.
  • Prepare a 13×9 inch casserole dish by spraying it with non-stick spray then spread ½ cup of the cheese sauce on the bottom.
  • Next add half of the cauliflower to the dish making a layer of it on the bottom.
  • Top with half of the cooked chicken and half of the ham. Let the meat fill in the spaces between the cauliflower to fill the dish.
  • Pour ½ of the remaining cheese sauce over the cauliflower, chicken, and ham.
  • Sprinkle 5 ounces of Gruyere on top and 3 ounces of mozzarella cheese over the chicken and ham.
  • Add the remaining cauliflower, chicken, and ham, to make a second layer.
  • Pour the remaining cheese sauce over the top then sprinkle on the remaining Gruyere and mozzarella cheese.
  • Place in the oven and bake for 30 minutes, or until the casserole is warmed through and the cheese is fully melted.

Nutrition

Calories: 605kcal, Carbohydrates: 5g, Protein: 42g, Fat: 46g, Saturated Fat: 26g, Trans Fat: 1g, Cholesterol: 213mg, Sodium: 1031mg, Potassium: 593mg, Fiber: 1g, Sugar: 1g, Vitamin A: 1432IU, Vitamin C: 31mg, Calcium: 641mg, Iron: 1mg
Nutrition Disclaimer: We are not certified nutritionists. Nutrition facts are an estimate and are provided as a courtesy. They are generated by an online API which recognizes ingredient names and amounts and makes calculations based on the serving size. Results may vary.
Author: Kat Jeter & Melinda Caldwell
Course: Main
Cuisine: American
Keyword: chicken cordon bleu casserole, keto chicken cordon bleu