Creamy Chicken Cordon Bleu Casserole Recipe

This easy chicken cordon bleu casserole brings together the classic flavors of chicken cordon bleu in a creamy, family-friendly baked pasta dish. With tender rotini, shredded chicken, savory ham, Swiss cheese, Parmesan, and a buttery cracker topping, it is a cozy dinner that can be prepared ahead of time for busy weeknights.

Easy Chicken Cordon Bleu Casserole Recipe

• This chicken cordon bleu casserole is rich, creamy, and packed with the familiar combination of chicken, ham, and Swiss cheese.
• Rotini pasta makes the dish hearty and helps hold the smooth Dijon cream sauce in every bite.
• It is a practical make-ahead dinner, making it a great choice when you want comfort food without a complicated cooking process.
• The crisp Ritz cracker topping adds buttery crunch and makes the casserole feel extra special.

Ingredients for Chicken Cordon Bleu Casserole

• Rotini Pasta: Rotini creates a sturdy base and holds the creamy sauce well. Penne or fusilli can also work if that is what you have on hand.
• Butter: Butter adds richness and combines with flour to create the base of the sauce.
• Garlic: Fresh garlic gives the casserole a deeper savory flavor. Garlic powder can be used if fresh garlic is not available.
• Flour: All-purpose flour thickens the sauce and gives it a smooth, creamy consistency.
• Half and Half: Half and half makes the sauce rich without being too heavy. You can substitute equal parts whole milk and heavy cream.
• Dijon Mustard: Dijon mustard adds depth and balances the richness of the cheese sauce. The flavor is subtle and blends into the casserole.
• Swiss Cheese: Swiss cheese gives this casserole its classic chicken cordon bleu flavor and melts beautifully into the sauce.
• Parmesan Cheese: Parmesan adds a salty, nutty flavor that makes the sauce more savory. Pecorino Romano can be used as an alternative.
• Shredded Rotisserie Chicken: Rotisserie chicken keeps this recipe easy and adds tender protein. Leftover cooked chicken breast or thighs also work well.
• Diced Ham: Ham brings the salty, savory flavor that makes chicken cordon bleu so recognizable. Leftover holiday ham is a great option.
• Ritz Crackers: Crushed Ritz crackers create a buttery, crisp topping. Panko breadcrumbs mixed with melted butter can be used instead.

How to Make Chicken Cordon Bleu Casserole

Cook the Pasta: Bring a large pot of salted water to a boil. Cook the rotini according to the package directions until it is just al dente. Drain the pasta and set it aside while you prepare the sauce.

Make the Sauce: Melt the butter in a large sauté pan over medium-low heat. Add the minced garlic and flour, then cook for about 1 minute, stirring constantly. Slowly whisk in the half and half, Dijon mustard, salt, and pepper until the mixture is smooth. Continue cooking for 3 to 4 minutes, stirring occasionally, until the sauce thickens. Avoid boiling the sauce so it stays creamy.

Add the Cheese: Stir in half of the Swiss cheese and all of the Parmesan cheese. Mix until the cheese has melted into the sauce and the texture is smooth and creamy.

Combine the Ingredients: Add the cooked pasta, shredded chicken, and most of the diced ham to the pan. Reserve a small amount of ham for topping the casserole. Toss everything together until the pasta is evenly coated in the sauce and the chicken and ham are warmed through. Taste and season with more salt and pepper if needed.

Assemble the Casserole: Transfer the creamy pasta mixture to a 9×13 baking dish or an oven-safe enameled cast iron pan. Sprinkle the remaining Swiss cheese over the top, then add the reserved diced ham.

Bake: Cover the dish and bake at 350°F for 5 to 10 minutes, or until the cheese is melted and the casserole is heated through.

Add the Topping: Sprinkle the crushed Ritz crackers evenly over the top. Broil for 1 to 2 minutes, watching closely, until the topping turns golden brown. Garnish with fresh chopped parsley and serve hot.

Tips for Making Chicken Cordon Bleu Casserole

• Don’t Overcook the Pasta: Cook the rotini just until al dente because it will continue to soften while the casserole bakes.
• Use Freshly Grated Cheese: Freshly grated cheese melts more smoothly than pre-shredded cheese and creates a creamier sauce.
• Customize the Protein: Turkey can be used in place of chicken and ham. Mushrooms are a helpful vegetarian-style option if you want to change the filling.
• Keep the Crackers Crispy: Add the cracker topping just before broiling so it stays crisp instead of absorbing moisture from the sauce.

Make-Ahead Instructions

• Assemble the casserole up to the baking step, but do not add the cracker topping yet.
• Cover the dish tightly and refrigerate it for up to 24 hours.
• Remove the casserole from the refrigerator about 1 hour before baking.
• Bake as directed, adding a few extra minutes if needed because the casserole will be cold.
• Add the crushed cracker topping just before broiling for the best texture.

Storing Leftovers

Store leftover chicken cordon bleu casserole in an airtight container in the refrigerator for up to 3 days. Let the casserole cool before storing, and keep the container tightly sealed to help maintain the best texture and flavor.

Freezing Chicken Cordon Bleu Casserole

• Freeze the unbaked casserole without the cracker topping in an airtight, freezer-safe container for up to 3 months.
• Thaw it overnight in the refrigerator before baking.
• Add the cracker topping only after the casserole has baked and just before broiling.

Reheating Chicken Cordon Bleu Casserole

• Reheat the casserole in a 350°F oven until warmed through, about 20 minutes. Cover it with foil to help prevent the pasta from drying out.
• For a quicker option, microwave individual portions on medium power until heated through.

Serving Suggestions

• Easy house salad
• Crispy garlic bread
• Air fryer asparagus
• Grilled halloumi salad
• Herb roasted baby potatoes

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