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This chicken cordon bleu casserole recipe is a healthier take on the chicken kiev and cordon bleu I grew up eating, without all the fuss of pounding and wrapping individual pieces of chicken. This healthy meal comes together much faster than the original, it’s naturally low carb, and it even has a hidden veggie in there — but it also has the same cheesy, creamy comfort food vibe that the whole family can agree on.

What Is Cordon Bleu Casserole?

Chicken cordon bleu casserole combines all of the classic flavors of chicken cordon bleu — the breaded chicken dish stuffed with ham and cheese, with the French name but originating from Switzerland — in an easy, healthy casserole.

This dish is so comforting, I even included it in my hardcover Easy Keto Carboholics’ Cookbook, which is dedicated to making healthy, low carb versions of carb-filled comfort foods. Once you try this keto chicken cordon bleu casserole recipe, I think you’ll see why I had to include it in the book, why it’s one of my favorite low carb dinners, AND why you don’t have to be keto to find it delicious.

Why You’ll Love This Chicken Cordon Bleu Casserole Recipe

  • Tender chicken and flavorful ham
  • Gooey cheese!
  • Luxurious, creamy, yet super simple sauce
  • Hidden veggie tucked inside
  • Ready in less than an hour (mostly hands off)
  • Naturally low carb and gluten-free
Baked chicken cordon bleu casserole in a baking dish.

Ingredients You’ll Need

This section explains how to choose the best ingredients for easy chicken cordon bleu casserole, what each one does in the recipe, and substitution options. For measurements, see the recipe card below.

  • Cauliflower – The hidden veggie! Cut the cauliflower into same-sized florets, so they cook evenly. Feel free to include any other vegetables you like here that work well when roasted.
  • Avocado Oil – Use avocado oil for best flavor and nutrition, but you can also use your preferred vegetable oil.
  • Sea Salt & Black Pepper – The amount of salt in the recipe assumes that your shredded chicken had salt added before cooking. If it’s completely unsalted, you can add more salt to taste before baking the casserole.
  • Heavy Cream – This gives the casserole rich and creamy flavor. I don’t recommend using milk, as the sauce will be too runny, but full-fat coconut milk (from a can) could work as a swap.
  • Sour Cream – Use full-fat sour cream for best flavor. Mayonnaise works as a substitute if needed, but the flavor will be different.
  • Dijon Mustard – This gives the casserole a little zing and pairs wonderfully with the ham. Yellow mustard is okay to use, but it may be too strong; the flavors work best with Dijon.
  • Garlic – Use fresh garlic for best flavor or jarred garlic for convenience. If you need to, you can substitute 1/2 teaspoon garlic powder instead.
  • Chicken – It needs to be cooked. You can make your own shredded chicken using chicken breasts or thighs. Other convenience options include rotisserie chicken, packaged precooked chicken breast, diced baked chicken breast, or any leftover chicken you have.
  • Ham – Use deli ham or leftover keto glazed ham.
  • Swiss Cheese – Buy shredded cheese for convenience, or shred your own for best flavor. Swiss is the classic choice, but you can also mix in Gruyere, mozzarella, or even pepper jack. If you have cheese slices on hand, you could also melt those on top of the casserole instead of using shredded.
  • Pork Rinds – These are optional, but add a nice crunch to the casserole, like breadcrumbs or crackers would. If making this for a family and you’re not concerned about the carbs, panko breadcrumbs are fine to substitute.
Chicken cordon bleu casserole recipe ingredients in bowls.

How To Make Chicken Cordon Bleu Casserole

This section shows how to make keto cordon bleu chicken casserole with step-by-step photos and details about the technique. For full instructions, see the recipe card below.

  1. Roast cauliflower. Season cauliflower with oil, sea salt, and pepper and spread out on a baking sheet. Roast until golden.
Cauliflower tossed with oil and spices.
Roasted cauliflower on a sheet pan.

  1. Mix sauce. In a large bowl, whisk together cream, sour cream, Dijon mustard, garlic, and half of the shredded cheese.
  2. Add main ingredients. Fold in shredded chicken, ham, and roasted cauliflower.
Cream base mixed in a bowl.
Cream base mixed with meat and cauliflower.

  1. Assemble. Transfer the mixture to a baking dish and sprinkle with more cheese. Layer the top with crushed pork rinds, if using.
  2. Bake. Place the baking dish in the oven, until cheese is melted and golden, and the casserole is bubbly. If desired, garnish with chives or parsley.
Finished chicken cordon bleu casserole in baking dish.

Is Chicken Cordon Bleu Casserole Keto?

It will depend on the recipe, but this casserole is keto! While many casserole recipes are made with potatoes or pasta as a base, we’re using roasted cauliflower instead — both healthy and delicious.

Storage Instructions

  • Store: Cover leftover keto chicken cordon bleu casserole with plastic wrap or foil and store in the fridge for 3-4 days.
  • Meal prep: Prep ingredients and roast cauliflower. Assemble and bake right before serving.
  • Reheat: Reheat in a 350 degree F or in the microwave.
  • Freeze: Freeze casserole for 2-3 months in an airtight container.

More Healthy Casserole Recipes

If you like this low carb chicken cordon bleu casserole, you might also like some of these other healthy and keto casserole recipes:

Reader Favorite Recipes

The recipe card is below! Readers that made this also viewed these recipes:

The Wholesome Yum Easy Keto Carboholics' Cookbook

This reader favorite recipe is included in The Wholesome Yum Easy Keto Carboholics’ Cookbook! Inside this beautiful hard cover keto recipe book, you’ll find 100 delectable, EASY keto recipes to replace all your favorite carbs: bread, pasta, rice, potatoes, desserts, and more… each with 10 ingredients or less! Plus, a photo, macros, & tips for every recipe.

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Chicken Cordon Bleu Casserole (Easy & Healthy!)

This easy, healthy, and surprisingly keto chicken cordon bleu casserole recipe features tender chicken & ham, creamy sauce, gooey cheese, and a hidden veggie — all with just 15 minutes prep time.

Prep: 15 minutes

Cook: 40 minutes

Total: 55 minutes

Servings: 12 (adjust to scale recipe)

Recipe Video

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Ingredients

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Instructions

Tap on the times in the instructions below to start a kitchen timer while you cook.

  1. Preheat the oven to 400 degrees F (204 degrees C).

  2. In a large bowl, toss the cauliflower with oil. Season with sea salt and black pepper.

  3. Arrange the cauliflower on a baking sheet. Roast in the oven for 25-30 minutes, until golden on the edges.

  4. Meanwhile, in a large bowl, stir together the sour cream, heavy cream, mustard, garlic, and half of the shredded cheese (1 cup). Stir in the chicken and ham.

  5. When the cauliflower is done, take it out of the oven and leave the oven on at 400 degrees F (204 degrees C). Stir the cauliflower into the bowl. Adjust salt and pepper to taste, if needed.

  6. Transfer the casserole mixture into a 9×13 in (23×33 cm) casserole dish. Sprinkle the remaining 1 cup of cheese over the top, followed by the pork rinds, if using.

  7. Bake for 10 minutes, until the cheese is melted. If desired, you can broil the casserole for 2 to 3 minutes to brown the topping.

Recipe Notes

Serving size: 1 cup, or 1/12 of entire casserole

Recipe from The Easy Keto Carboholics’ Cookbook.

If you are looking for an older version of this recipe without cauliflower, you can make it without cauliflower and reduce the amount of sauce a bit.

Nutrition Facts

Amount per serving. Serving size in recipe notes above.

Calories 353

Fat 25g

Protein 27.2g

Total Carbs 4.6g

Net Carbs 3.5g

Fiber 1.1g

Sugar 1.8g

Nutrition facts are provided as a courtesy. Have questions about calculations or why you got a different result? Please see our nutrition policy.

© Copyright Maya Krampf for Wholesome Yum. Please DO NOT SCREENSHOT OR COPY/PASTE recipes to social media or websites. We’d LOVE for you to share a link with photo instead. 🙂

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