I spotted this Chicken Cordon Bleu Casserole on Pinterest and was drawn to its simple, time-saving approach to the classic dish. Traditional chicken cordon bleu is made by pounding chicken breasts thin, wrapping them around Swiss cheese and ham, breading and pan-frying them, and serving with a creamy sauce. This casserole keeps the same flavors but skips the fuss: shredded rotisserie chicken replaces pounded breasts, and layers of ham and Swiss cheese are combined with a rich, lemon-Dijon sauce. A buttery breadcrumb and Parmesan topping is baked until golden, resulting in a gooey, comforting casserole that delivers the familiar restaurant-style taste with far less effort.
Cooking Tips for the Perfect Chicken Cordon Bleu Casserole
To get the best results with this casserole, pay attention to layering, moisture and baking time. Distribute the ham and Swiss cheese evenly so every portion has a balanced amount of meat and melted cheese. If your shredded rotisserie chicken seems dry, add a splash of chicken broth or a couple of tablespoons of cream to the meat before assembling to preserve moisture. When making the sauce, whisk the flour into melted butter and then stream in the milk slowly to avoid lumps; bring the sauce to a full boil so it thickens properly. For even baking and a crisp topping, cover the dish with foil for the first half of the bake to trap steam and prevent over-browning, then remove the foil for the final 15–20 minutes to achieve a golden crust. Use a meat thermometer to confirm the casserole reaches an internal temperature of 165°F (74°C). Let the casserole rest about 10 minutes before serving so the sauce firms up and slices hold together cleanly.
Serving Suggestions and Variations
This Chicken Cordon Bleu Casserole is versatile and easy to adapt for weeknight dinners or gatherings. Serve it alongside a crisp green salad dressed with a bright vinaigrette to cut through the richness, or pair it with steamed or roasted vegetables such as green beans, asparagus, or carrots. Garlic bread or warm dinner rolls are great for soaking up the creamy sauce.
To vary the recipe: add sautéed mushrooms or a handful of baby spinach for extra flavor and nutrients; swap Swiss for Gruyère, provolone, or mozzarella for a different melt and taste; stir a pinch of red pepper flakes or a few diced jalapeños into the sauce for mild heat. This casserole scales easily—double the ingredients for a larger crowd and bake in a bigger pan. Store leftovers in an airtight container in the refrigerator for up to three days and reheat in the oven to preserve texture and avoid sogginess.
Frequently Asked Questions
Can I use other types of cheese?
Yes. Swiss cheese is traditional and pairs well with ham, but provolone, Gruyère or mozzarella are good alternatives. Each will slightly change the flavor and melt, so choose according to your taste.
How should I store leftovers?
Place leftovers in an airtight container and refrigerate for 3–4 days. Reheat in a 350°F oven until warmed through to keep the topping crisp; microwaving may make the casserole soggy.
Can I assemble the casserole ahead of time?
Absolutely. You can put the casserole together a day in advance, cover it tightly and refrigerate. When baking from chilled, allow a few extra minutes in the oven to compensate for the lower starting temperature.
What should I serve with this casserole?
A simple green salad, roasted or steamed vegetables, or garlic bread all complement the creamy, savory casserole. A tangy vinaigrette provides a nice contrast to the richness.
What are common mistakes to avoid?
Avoid uneven layering of ham and cheese, which can create inconsistent bites. Make sure the sauce is well-thickened before pouring it into the dish; if the chicken is dry, add a little broth to keep the casserole moist. Also be careful not to overbake, or the topping and cheese can become too dry.
Chicken Cordon Bleu Casserole
Liza A
Ingredients
- 1 large rotisserie chicken, meat removed and shredded (about 5–6 cups)
- ½ lb sliced deli-style black forest ham, chopped
- ½ lb sliced Swiss cheese
Sauce:
- 4 tbsp butter
- 4 tbsp flour
- 3 cups milk
- 2 tbsp lemon juice
- 1 tbsp Dijon mustard
- 1½ tsp salt
- ½ tsp paprika
- ½ tsp pepper
Topping:
- 4 tbsp melted butter
- 1¼ cups seasoned breadcrumbs
- ¼ cup Parmesan cheese
Instructions
- Preheat the oven to 350°F (175°C). Grease a 9×13-inch casserole dish.
- Layer the shredded chicken in the bottom of the dish, followed by the chopped ham, then arrange the Swiss cheese on top.
- Make the sauce: in a medium saucepan over medium heat, melt the butter. Whisk in the flour and cook for about 1 minute. Gradually whisk in the milk, then increase the heat and cook until the sauce thickens and comes to a boil, whisking frequently. Remove from heat and stir in the lemon juice, Dijon mustard, salt, paprika and pepper.
- Pour the finished sauce over the chicken-ham-cheese layers so it’s evenly distributed.
- Mix the melted butter, breadcrumbs and Parmesan in a small bowl until the crumbs are evenly coated. Sprinkle the topping over the casserole.
- Cover the dish with foil and bake for about 30 minutes. Remove the foil and bake an additional 15 minutes or until the topping is golden and the casserole is heated through. Let rest for 10 minutes before serving.
Notes
This version adapts the classic chicken cordon bleu into an easier baked casserole using rotisserie chicken. If desired, add sautéed mushrooms or spinach to the layers for extra flavor. The casserole can be assembled a day ahead and refrigerated; allow a few extra minutes in the oven when baking from cold.
Nutrition (per serving)
- Calories: 550 kcal
- Carbohydrates: 30 g
- Protein: 40 g
- Fat: 30 g
- Saturated Fat: 15 g
- Cholesterol: 150 mg
- Sodium: 1200 mg
- Fiber: 1 g
- Sugar: 2 g