Keto Chicken Cordon Bleu Casserole – Creamy, Comforting, and Low-Carb
This Keto Chicken Cordon Bleu Casserole brings all the cozy flavors of the classic dish without the carb-heavy breadcrumbs. It’s creamy, savory, and layered with tender chicken, smoky ham, and melty Swiss cheese. The sauce is rich but simple, and the almond flour topping adds just the right crunch.
It comes together quickly, uses easy-to-find ingredients, and tastes like a special occasion—even on a weeknight.
Ingredients
Method
- Preheat and prep: Heat oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish with olive oil or butter.
- Layer the base: Spread the chopped cooked chicken evenly in the dish. Scatter the chopped ham over the top.
- Make the sauce: In a medium saucepan over medium-low heat, whisk together cream cheese, heavy cream, Dijon, garlic powder, onion powder, pepper, salt, paprika, and lemon juice. Stir until smooth and just starting to bubble, 3–5 minutes. Taste and adjust seasoning.
- Add the cheese: Remove sauce from heat and stir in half of the shredded Swiss until melted. The rest goes on top later.
- Sauce it up: Pour the warm sauce over the chicken and ham, spreading evenly with a spatula.
- Top with Swiss: Sprinkle the remaining Swiss cheese evenly over the casserole.
- Mix the crumble: In a small bowl, combine almond flour, grated Parmesan, and melted butter until it forms a sandy mixture. It should clump slightly when pressed.
- Add the crunch: Sprinkle the almond-Parmesan crumble over the top. Don’t pack it down; keep it loose for better browning.
- Bake: Place on the center rack and bake for 20–25 minutes, until the casserole is bubbling and the topping is golden.
- Rest and serve: Let it rest 5–10 minutes so the sauce sets. Garnish with parsley and serve warm.
What Makes This Recipe So Good
- Classic flavor, lightened up: You get the signature chicken-ham-Swiss combo with a silky, keto-friendly cream sauce.
- Weeknight simple: Uses cooked chicken, pantry spices, and a quick stovetop sauce. No fussy steps.
- Meal-prep friendly: Holds up well in the fridge and reheats beautifully.
- Family-approved: Comfort food vibes with balanced seasoning and a golden, crunchy topping.
- Customizable: Easy to tweak for dairy preferences, spice level, or what you have on hand.
What You’ll Need
- Cooked chicken: 4 cups, chopped or shredded (rotisserie works great)
- Deli ham: 8 ounces, sliced and chopped (sugar-free if possible)
- Swiss cheese: 8 ounces, shredded (or sliced)
- Cream cheese: 6 ounces, softened
- Heavy cream: 1 cup
- Dijon mustard: 2 tablespoons
- Garlic powder: 1 teaspoon
- Onion powder: 1 teaspoon
- Black pepper: 1/2 teaspoon (or to taste)
- Salt: 1/2 teaspoon (adjust based on ham and cheese saltiness)
- Paprika: 1/2 teaspoon (optional, for color and warmth)
- Lemon juice: 1 teaspoon (brightens the sauce)
- Almond flour: 1/2 cup
- Grated Parmesan: 1/3 cup
- Butter: 3 tablespoons, melted
- Fresh parsley: 2 tablespoons, chopped (optional garnish)
- Olive oil or butter: For greasing the baking dish
Step-by-Step Instructions
- Preheat and prep: Heat oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with olive oil or butter.
- Layer the base: Spread the chopped cooked chicken evenly in the dish.
Scatter the chopped ham over the top.
- Make the sauce: In a medium saucepan over medium-low heat, whisk together cream cheese, heavy cream, Dijon, garlic powder, onion powder, pepper, salt, paprika, and lemon juice. Stir until smooth and just starting to bubble, 3–5 minutes. Taste and adjust seasoning.
- Add the cheese: Remove sauce from heat and stir in half of the shredded Swiss until melted.
The rest goes on top later.
- Sauce it up: Pour the warm sauce over the chicken and ham, spreading evenly with a spatula.
- Top with Swiss: Sprinkle the remaining Swiss cheese evenly over the casserole.
- Mix the crumble: In a small bowl, combine almond flour, grated Parmesan, and melted butter until it forms a sandy mixture. It should clump slightly when pressed.
- Add the crunch: Sprinkle the almond-Parmesan crumble over the top. Don’t pack it down; keep it loose for better browning.
- Bake: Place on the center rack and bake for 20–25 minutes, until the casserole is bubbling and the topping is golden.
- Rest and serve: Let it rest 5–10 minutes so the sauce sets.
Garnish with parsley and serve warm.
Keeping It Fresh
- Fridge: Store leftovers in an airtight container for up to 4 days. Reheat covered at 325°F until warmed through, or microwave in short bursts.
- Freezer: Freeze in portions for up to 2 months. Thaw overnight in the fridge, then reheat covered at 325°F.
Add a sprinkle of cheese if it looks dry.
- Moisture tip: If reheating seems dry, stir in a splash of cream or chicken broth before warming.
Health Benefits
- Low in carbs: Skips breadcrumbs and flour-based roux, keeping net carbs low and keto-friendly.
- High in protein: Chicken and ham support muscle repair and satiety.
- Satiating fats: Dairy and butter help keep you full and support steady energy on a keto lifestyle.
- Customizable sodium: You control salt levels by choosing lower-sodium ham and adjusting seasoning.
Pitfalls to Watch Out For
- Too salty: Ham and Swiss can be salty. Taste the sauce before adding extra salt.
- Greasy top: Overloading butter in the crumble can make it oily. Stick to the measurements.
- Watery casserole: Very moist chicken can release liquid.
Pat chicken dry or use leftover baked/roasted chicken.
- Bland sauce: Don’t skip Dijon and lemon. They balance the richness and make flavors pop.
Recipe Variations
- Broccoli boost: Add 2 cups lightly steamed, chopped broccoli under the sauce for extra veggies.
- Gruyère twist: Swap part or all of the Swiss for Gruyère for a nuttier flavor.
- Smoked flair: Use smoked ham or add a pinch of smoked paprika to the sauce.
- Mustard lovers: Stir in 1 extra tablespoon Dijon for a bolder tang.
- Crumb alternative: Use crushed pork rinds mixed with Parmesan and butter for an ultra-crispy topping.
- Dairy-light option: Replace some heavy cream with unsweetened almond milk and add 1/4 teaspoon xanthan gum to thicken.
- Spice it up: A pinch of red pepper flakes or a dash of hot sauce in the sauce adds gentle heat.
FAQ
Can I use raw chicken instead of cooked?
It’s best to use cooked chicken to keep the bake time short and the texture tender. If starting with raw chicken, dice it and sauté in a little butter or oil until just cooked through, then proceed with the recipe.
What can I use instead of almond flour for the topping?
Crushed pork rinds are a great low-carb substitute and get very crisp.
You can also use finely ground sunflower seed flour if you avoid almonds.
Is Swiss cheese mandatory?
No. Swiss is classic, but Gruyère, provolone, or a mild gouda work well. Choose a cheese that melts smoothly and complements ham.
How many carbs are in a serving?
Exact macros vary by brand.
As a ballpark, a serving typically lands around 4–6g net carbs. Use your specific ingredients in a nutrition calculator for accuracy.
Can I make this ahead?
Yes. Assemble the casserole (without baking), cover, and refrigerate up to 24 hours.
Add 5–10 extra minutes to the bake time since it starts cold.
How do I prevent the sauce from breaking?
Keep the heat moderate and whisk until smooth. Remove from heat before adding the Swiss to melt gently. Avoid boiling after the cheese is added.
What if I don’t have Dijon?
Use regular yellow mustard plus a pinch of dry mustard, or add a splash of white wine vinegar for tang.
Can I omit the ham?
Yes.
The dish becomes a creamy chicken and Swiss casserole. For a similar vibe, use turkey or a few slices of Canadian bacon.
Final Thoughts
This Keto Chicken Cordon Bleu Casserole checks every comfort food box while staying true to low-carb goals. It’s creamy, cheesy, and deeply satisfying, with just enough crunch to keep each bite interesting.
Keep the ingredients on hand, and you’ll have a dependable, crowd-pleasing dinner any night of the week. Serve it with a simple green salad, and you’re set.
Printable Recipe Card
Want just the essential recipe details without scrolling through the article? Get our printable recipe card with just the ingredients and instructions.
