Best Chicken Cordon Bleu Casserole Recipe
Introduction
This Best Chicken Cordon Bleu Casserole is a comforting, flavorful twist on the classic dish. Packed with tender chicken, savory ham, and melty Swiss cheese, it’s an easy meal perfect for family dinners or potlucks.

Ingredients
- 3 cups cooked chicken, shredded or cubed
- 1 1/2 cups cooked ham, diced
- 2 cups shredded Swiss cheese, divided
- 1/2 cup sour cream
- 1/4 cup milk
- 1 tablespoon Dijon mustard
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- Salt and pepper to taste
- 1/2 cup bread crumbs, plain or seasoned (optional)
- 2 tablespoons melted butter (optional)
Instructions
- Step 1: Preheat the oven to 350°F (175°C). Grease a 9×13 inch baking dish to prevent sticking.
- Step 2: In a large mixing bowl, combine the cooked chicken, diced ham, and 1 1/2 cups of Swiss cheese.
- Step 3: In a separate bowl, whisk together the sour cream, milk, Dijon mustard, garlic powder, onion powder, salt, and pepper until smooth.
- Step 4: Pour the sour cream mixture over the chicken and ham mixture. Stir gently until everything is evenly coated.
- Step 5: Transfer the combined mixture into the prepared baking dish and spread it out evenly.
- Step 6: Sprinkle the remaining 1/2 cup of Swiss cheese evenly over the top of the casserole.
- Step 7: In a small bowl, mix the bread crumbs with melted butter if using. Sprinkle this mixture evenly on top of the cheese for a crispy topping.
- Step 8: Bake for 25-30 minutes, or until the casserole is hot throughout and the cheese is melted and bubbling.
- Step 9: Allow the casserole to cool for a few minutes before serving to let it set.
Tips & Variations
- Use seasoned bread crumbs or add dried herbs like thyme or parsley to the topping for extra flavor.
- Substitute Swiss cheese with Gruyère or mozzarella for a different taste.
- For a lower-fat option, use reduced-fat cheese and sour cream.
- Add steamed broccoli or peas to the mixture to boost the veggie content.
Storage
Store leftover casserole in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F (175°C) until warmed through, or microwave individual portions until hot.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use fresh chicken instead of cooked chicken?
For best results, use cooked chicken to avoid drying out the casserole. If using raw chicken, cook it thoroughly before combining.
Is it possible to make this casserole ahead of time?
Yes, you can assemble the casserole and refrigerate it for up to 24 hours before baking. Just add a few extra minutes to the baking time if baking straight from the fridge.
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Best Chicken Cordon Bleu Casserole Recipe
- Total Time: 45 minutes
- Yield: 6 servings 1x
Description
This Best Chicken Cordon Bleu Casserole is a comforting, cheesy baked dish featuring tender chicken, savory ham, and rich Swiss cheese, all combined with a creamy, flavorful sauce. It’s a perfect family-friendly meal that’s easy to prepare and sure to please.
Ingredients
Main Ingredients
- 3 cups cooked chicken, shredded or cubed
- 1 1/2 cups cooked ham, diced
- 2 cups shredded Swiss cheese, divided
- 1/2 cup sour cream
- 1/4 cup milk
- 1 tablespoon Dijon mustard
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- Salt and pepper to taste
Topping (Optional)
- 1/2 cup bread crumbs, plain or seasoned
- 2 tablespoons melted butter
Instructions
- Preheat oven: Preheat your oven to 350°F (175°C) and grease a 9×13 inch baking dish to prevent sticking.
- Combine main ingredients: In a large mixing bowl, combine the cooked chicken, diced ham, and 1 1/2 cups of shredded Swiss cheese.
- Prepare sauce mixture: In a separate bowl, whisk together the sour cream, milk, Dijon mustard, garlic powder, onion powder, salt, and pepper until smooth and well blended.
- Mix sauce with chicken mixture: Pour the sauce mixture over the chicken and ham mixture, stirring gently to coat all ingredients evenly.
- Transfer to baking dish: Pour the combined mixture into the prepared baking dish and spread it out evenly.
- Add cheese topping: Sprinkle the remaining 1/2 cup of Swiss cheese evenly over the top of the casserole.
- Optional breadcrumb topping: In a small bowl, mix the bread crumbs with melted butter until combined, then sprinkle this evenly over the cheese layer for a crunchy topping.
- Bake the casserole: Bake in the preheated oven for 25-30 minutes, or until the casserole is heated through and the cheese is melted and bubbly.
- Rest and serve: Allow the casserole to cool for a few minutes before serving to set and ensure easier portioning.
Notes
- You can use plain or seasoned bread crumbs depending on your flavor preference for the topping.
- Shrimp or turkey can be used instead of chicken for a variation.
- For a lower-fat version, substitute sour cream with Greek yogurt and use reduced-fat Swiss cheese.
- Make sure the chicken and ham are cooked before assembling the casserole to ensure food safety.
- If you prefer a gluten-free option, use gluten-free bread crumbs or omit the topping altogether.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Lunch & Dinner
- Method: Baking
- Cuisine: American
Keywords: Chicken Cordon Bleu Casserole, Chicken Casserole, Baked Chicken, Swiss Cheese Casserole, Comfort Food

