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    Home » Recipes » Casserole Recipes

    Published: Jun 15, 2021 · Last Updated: Jun 13, 2022 by Kyndra Holley

    Keto Chicken Cordon Bleu Casserole

    This post may contain affiliate links

    10137 shares
    Jump to Recipe
    a white casserole dish full of a cheesy low carb chicken cordon blue casserole, garnished with parsley
    a white casserole dish full of a cheesy low carb chicken cordon blue casserole, garnished with parsley
    a white casserole dish full of a cheesy low carb chicken cordon blue casserole, garnished with parsley
    chicken cordon bleu casserole on a white plate, serving with steamed broccoli

    This warm and comforting Keto Chicken Cordon Bleu Casserole is the perfect quick and easy weeknight meal. It has all the traditional flavors of cordon bleu with juicy chicken, salty ham, and melty Swiss cheese, but paired with the hearty goodness of mushrooms, onion, garlic, and cauliflower - finished with a rich tarragon cream sauce and topped with Parmesan cheese. Best of all, it can be on the table in less than 30 minutes.

    a white casserole dish full of a cheesy low carb chicken cordon blue casserole, garnished with parsley
    Table of Contents show
    Ingredients Notes
    Step by Step Instructions
    Recipe Tips and Variations
    Frequently Asked Questions
    More Keto Cordon Bleu Recipes
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    Keto Chicken Cordon Bleu Casserole

    Ingredients Notes

    Ingredients all laid out to make a low carb chicken cordon bleu casserole
    • Chicken: For this chicken cordon bleu casserole, I used boneless, skinless chicken breasts, but you could also use chicken thighs. To make this recipe even quicker, you can also use shredded rotisserie chicken. (more keto chicken recipes).
    • Ham Steak: I bought a large ham steak and cubed it up, but you can also use sliced deli ham, pancetta, or even bacon. (more keto ham recipes)
    • Cauliflower: What would a low carb casserole be without the addition of cauliflower? But seriously, adding the cauliflower and the mushrooms adds more heartiness to this casserole. (Try my Loaded Cauliflower Casserole Recipe)
    • Swiss Cheese: For this recipe, I use Swiss cheese because it is a classic component of cordon bleu, but you can honestly use any cheese you prefer. Some of my favorites for this recipe are mozzarella, sharp white cheddar, or smoked gouda.
    • Tarragon: Tarragon has a similar flavor to fennel or anise. It really adds something special to the sauce for this keto chicken cordon bleu casserole.

    Step by Step Instructions

    left - raw chicken in a skillet - right - cooked chicken, onions, mushrooms, and ham in a skillet

    How to make Keto Chicken Cordon Bleu Casserole

    STEP 1: Preheat the oven to 350°F. In large skillet over medium-high heat, brown chicken in the butter.

    STEP 2: Once the chicken is browned on both sides, add the ham, onion and mushrooms to pan.

    left - cooked chicken, ham, mushrooms, and onions in a skillet - Right, a head of cauliflower in a pan

    STEP 3: Reduce heat to medium and continue cooking until the onions are translucent and soft.

    STEP 4
    : At the same time, steam the head of cauliflower in the chicken stock , in a covered sauce pot over high heat. Steam until the cauliflower is fork tender.

    left ingredients for a tarragon cream sauce in a pot - right - the finished sauce

    STEP 5: In medium sauce pot, combine the heavy cream, garlic, ½ cup Parmesan cheese, sour cream, 2 slices Swiss cheese, tarragon and salt and pepper.

    STEP 6: Bring to a low boil over medium-high heat and then reduce the heat to low and simmer, stirring frequently for 10 minutes or until the sauce has reduced by ⅓ and is thick.

    step by step instructions for how to make a low carb casserole with chicken, ham, cheese, cauliflower and mushrooms

    STEP 7: Drain the chicken stock from the pan. Leave the cauliflower in the hot pan, but remove the pan from the heat. This will allow some of the excess moisture to continue to evaporate from the cauliflower.  Once nearly all of the liquid is evaporated, fork mash the cauliflower.

    STEP 8: In a 3 quart casserole dish, combine the mashed cauliflower, meat mixture and sauce.

    a cordon casserole before going into the oven and then after coming out of the oven baked with melty cheese

    STEP 9: Once all the ingredients are well incorporated, cover the top with remaining Swiss cheese and Parmesan cheese.  

    STEP 10: Bake for 25 minutes or until the Parmesan cheese on top is golden brown and has formed a crust. Garnish with parsley.

    a white casserole dish full of a cheesy low carb chicken cordon blue casserole, garnished with parsley

    Recipe Tips and Variations

    • Serving suggestions: I like to serve this with Roasted Brussels Sprouts with Cider Dijon Sauce, Steamed Artichokes with Lemon Caper Aioli, Lemon Pepper Green Beans, Prosciutto Peace and Melon Salad, or Paprika Roasted Radishes.
    • Storage: Store leftovers in the refrigerator for up to 4 days.
    • Reheating: Reheat in the microwave, on the stove top, or in the oven.
    • Change up the cheese: this is also amazing made with sharp white cheddar, smoked gouda, mozzarella, or a combination of all three.
    • Add breadcrumbs: Sprinkle breadcrumbs or my Nut Free Keto Breading over the top for a crunchy crust.
    • Make it a pasta: Use 2 packages of fettuccine shirataki noodles in place of the cauliflower and make this a pasta casserole.
    • Add pesto: While pesto isn't a traditional ingredient for chicken cordon bleu, it takes this dish to the next level. Add 2 to 3 tablespoons to the sauce while simmering.
    a white casserole dish full of a cheesy low carb chicken cordon blue casserole, garnished with parsley

    Frequently Asked Questions

    Can you make this chicken cordon bleu casserole without cauliflower?

    Yes, absolutely. It is equally delicious either way. Simply cook it as per the recipe, but skip the cauliflower steps.

    a white casserole dish full of a cheesy low carb chicken cordon blue casserole, garnished with parsley

    More Keto Cordon Bleu Recipes

    • Sliced medallions of Keto Chicken Cordon Bleu on a bed of raw spinach in a white bowl, topped with creamy cheese sauce.
      Keto Chicken Cordon Bleu
    • a rimmed baking sheet with parchment paper, topped with portobello mushrooms, cooked with Cordon Bleu toppings.
      Portobello Cordon Bleu with Dijon Cream Sauce
    • Chicken Cordon Bleu Lasagna - Low Carb, Gluten Free
      Chicken Cordon Bleu Keto Lasagna
    • Keto Chicken Cordon Bleu Soup | Peace Love and Low Carb
      Keto Chicken Cordon Bleu Soup

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    a white casserole dish full of a cheesy low carb chicken cordon blue casserole, garnished with parsley

    Keto Chicken Cordon Bleu Casserole


    ★★★★★

    5 from 12 reviews

    • Author: Kyndra Holley
    • Total Time: 1 hour
    • Yield: 8 servings 1x
    Print Recipe
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    Description

    This warm and comforting Keto Chicken Cordon Bleu Casserole is the perfect quick and easy weeknight meal. It has all the traditional flavors of cordon bleu with juicy chicken, salty ham, and melty Swiss cheese, but paired with the hearty goodness of mushrooms, onion, garlic, and cauliflower - finished with a rich tarragon cream sauce and topped with Parmesan cheese. Best of all, it can be on the table in less than 30 minutes.


    Ingredients

    Units Scale
    • 1 pound boneless, skinless chicken breast, cubed (I get my organic, pastured chicken here)
    • 3 tablespoons butter
    • 1 large head cauliflower, cleaned and trimmed (but left whole)
    • ½ cup chicken stock
    • 12 ounces ham steak, diced
    • ½ cup chopped onion
    • ½ cup chopped mushrooms
    • 1 ¼ cups heavy cream
    • 3 cloves garlic, minced
    • 1 cup grated Parmesan cheese, divided
    • ½ cup sour cream
    • 6 slices Swiss cheese, divided
    • 1 teaspoon dried tarragon
    • sea salt and black pepper, to taste
    • chopped fresh flat-leaf parsley, for garnish
     

    Instructions

    1. Preheat the oven to 350°F.
    2. In large skillet over medium-high heat, brown chicken in the butter.  Once the chicken is browned on both sides, add the ham, onion and mushrooms to pan.  Reduce heat to medium and continue cooking until the onions are translucent and soft.
    3. At the same time, steam the head of cauliflower in the chicken stock , in a covered sauce pot over high heat. Steam until the cauliflower is fork tender. Drain the chicken stock from the pan. Leave the cauliflower in the hot pan, but remove the pan from the heat. This will allow some of the excess moisture to continue to evaporate from the cauliflower.  Once nearly all of the liquid is evaporated, fork mash the cauliflower.
    4. In medium sauce pot, combine the heavy cream, garlic, ½ cup Parmesan cheese, sour cream, 2 slices Swiss cheese, tarragon and salt and pepper. Bring to a low boil over medium-high heat and then reduce the heat to low and simmer, stirring frequently for 10 minutes or until the sauce has reduced by ⅓ and is thick.
    5. In a 3 quart casserole dish, combine the mashed cauliflower, meat mixture and sauce.  Once all the ingredients are well incorporated, cover the top with remaining Swiss cheese and Parmesan cheese.  Bake for 25 minutes or until the Parmesan cheese on top is golden brown and has formed a crust.
    6. Garnish with parsley
    • Prep Time: 15 minutes
    • Cook Time: 45 minutes
    • Category: Casserole Recipes
    • Method: Baking
    • Cuisine: Swiss

    Nutrition

    • Serving Size: ⅛th of the casserole
    • Calories: 383
    • Fat: 24g
    • Carbohydrates: 7 net grams
    • Protein: 32g

    Keywords: keto chicken cordon bleu, cordon bleu casserole, low carb casserole recipes, keto chicken recipes, low carb hot dish, keto casseroles, easy weeknight meals

    Did you make this recipe?

    Tag @kyndraholley on Instagram and hashtag it #peaceloveandlowcarb

    **Recipe Originally Posted November 28th 2012 - Updated June 14th 2021**

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    Reader Interactions

    Comments

    1. Nick says

      September 18, 2021 at 5:14 pm

      I made this exactly as the recipe and didn't alter anything. Really good!

      ★★★★★

      Reply
    2. Tina says

      August 19, 2021 at 8:10 pm

      I made this recipe and it was so good! Definitely will make it again.

      ★★★★★

      Reply
    3. Anthony Lacopo says

      July 28, 2021 at 2:12 pm

      Made 3 of these last night for friends. Wonderful! I served 2 and froze one. I guess we'll see how well this freezes.
      To one I added chopped spinach. I know there is no spinach on Cordon Bleu, but it added a wonderful splash of color and I really liked the flavor it imparted!
      Thanks for a great recipe!

      ★★★★★

      Reply
    4. Morris Johnson says

      July 05, 2021 at 6:46 am

      This was absolutely delicious. The whole family loved it. Thank for making low carb comfort food that is easy and tasty.

      ★★★★★

      Reply
    5. Robin says

      June 21, 2018 at 1:01 pm

      Just got Curavable Keto...LOVE it! Can't wait to try this recipe but have a question. I buy frozen cauliflower rice can I sub that for the fork mashed?.

      I live in Washington as well. Great to see such awesome talent coming out of the Pacific Northwest!

      Reply
    6. leslie says

      January 14, 2018 at 8:30 am

      Made this last night - sooo good. My family loved it. Thanks for the great recipes!!!

      Reply
    7. Karen says

      October 03, 2017 at 4:42 pm

      Hi Kyndra. Just made this and it is so delicious! Plus my family loved it too!! Score! Thank you for the great recipe!

      Reply
    8. Megan says

      July 31, 2016 at 9:02 pm

      This sounds so good. I won't be putting the cauliflower in because, although I like it, I only like it when it's barely tender. But, a casserole full of ham, Swiss, chicken, Parm, and cream sounds delightful. Good job!

      Reply
      • Megan says

        August 03, 2016 at 7:49 pm

        I made it tonight, without the cauliflower, halving the sauce ingredients and using an 8x8" dish. Unbelievable! My daughter said I can make it any time. The sauce is divine and I will be using it for other recipes. Two thumbs up!

        Reply
      • Kay-M says

        February 12, 2017 at 7:42 am

        Megan - Maybe, you could put the cauliflower in, raw?

        Reply
    9. Sandi says

      May 29, 2016 at 6:50 pm

      Just wondering - Do you reuse the chicken broth in another dish or just throw it out after cooking the cauli?

      Reply
    10. Gloria L. says

      May 29, 2016 at 12:56 pm

      Yummy! Eaten up by the non-low carbers too. BTW, a 9 x 9 casserole dish holds 1.5 quarts, not 3 quarts. For the herbs, could you please type in "fresh" or "dried" so I don't have to follow the link to figure that out. I like to print out the recipes and won't always have the link for reference. Thanks for all the gr8 recipes!

      Reply
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    About Kyndra


    Kyndra
    Hey there! Welcome to my site! I am Kyndra Holley - International Best Selling Cookbook Author, and the face behind this blog. I am an avid lover of all things low carb, keto and gluten free. I focus on real, whole food ingredients that you can find at your local grocer. Read more about Peace Love and Low Carb...

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