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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

    Jump to Recipe·Print Recipe·5 from 12 reviews
    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 Stars 4 Stars 3 Stars 2 Stars 1 Star

    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

    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

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      Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star

    1. Katherine Vodzak says

      September 12, 2022 at 12:28 pm

      AMAZING

      Reply
    2. Tara says

      June 03, 2022 at 12:59 pm

      I tried a different recipe for Chicken Cordon Bleu casserole and this one blew it out of the water! This was so amazingly delicious and another great recipe for weekly meal prep!

      Reply
    3. Marga says

      March 07, 2022 at 1:24 pm

      Just made this last night for dinner! It was so delicious and comforting. Like a huge hug. I might add just a slight tiny pinch of nutmeg to give it that extra secret pop! Overall will make this again.

      Reply
    4. Stacie says

      March 07, 2022 at 1:02 pm

      Another favorite, my hubby loves chicken cordon Bleu but I hate making it, this recipe is easy peas and just as delicious!

      Reply
    5. Walker says

      February 10, 2022 at 4:49 pm

      This is the third recipe of Kyndra’s that we have tried…in one week. And holy cow, she has yet to disappoint. I am in the kitchen a ton, and finding dependable, tasty, healthy recipes is difficult. I truly appreciative of the treasure trove on this site. This casserole was UNBELIEVABLY amazing. I did use plain Greek Yogurt instead of sour cream just to increase our protein a little more. Other than that, I followed her recipe exactly and it was incredible.

      Reply
    6. Amy Baker says

      December 14, 2021 at 4:44 pm

      Sooooooo delicious!! Made it with my 19 year old college student. He wanted to help me cook and this was a great first recipe for us to make together. We added more onions, mushrooms, heavy cream, and parm. Also broiled the top at the very end. Our 9x13 pan is almost gone with only 3 of us eating. Absolutely incredible recipe that we will be making again. Thanks Kyndra!!

      Reply
    7. Brooke Hughes says

      December 11, 2021 at 10:29 am

      One of my favorites. Recipe steps are easy to follow with a great end result.

      Reply
    8. Laura says

      October 13, 2021 at 1:54 am

      Dying to know of anyone froze it successfully?

      Reply
    9. Jennifer says

      October 06, 2021 at 1:00 pm

      This was very good, I'm going to try and make it a freezer meal

      Reply
    « Older Comments

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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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