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This Chicken Cordon Bleu Casserole is a comforting family favorite featuring layers of tender chicken, ham, creamy cheese sauce, and Swiss cheese baked to perfection. Easy to prepare and perfect for weeknight dinners or meal prepping, this recipe combines wholesome ingredients like chicken broth, Dijon mustard, and fresh shredded cheese for a dish that’s rich in flavor. Ideal for busy households, it includes customizable options for low-carb or vegetarian diets. Ready to serve in just one casserole dish, it’s a hearty and satisfying meal for any occasion.

Ingredients

Base:

2 tablespoons butter
½ cup yellow onion, diced
3 cloves garlic, minced
1 tablespoon olive oil
1 teaspoon dried thyme
½ teaspoon garlic powder
2 ½ cups chicken broth
1 ¼ cups white long-grain rice, uncooked
10.75 oz. cream of chicken soup
½ cup sour cream
1 cup milk
2 teaspoons Dijon mustard
1 cup cheddar cheese, shredded
⅓ cup Parmesan cheese, grated
1 cup cooked chicken, diced
8 oz. ham steak or 1 cup diced ham
9 slices Swiss cheese

Topping:

⅓ cup seasoned breadcrumbs
1 tablespoon melted butter

Instructions

Prep Work:

Rinse the rice under cool water in a strainer for 1 minute to remove excess starch. This prevents sticking during cooking.
Shred the cheddar cheese and set it aside to allow it to reach room temperature for better melting. Avoid using pre-shredded cheese as it contains additives that can affect melting.
If using uncooked chicken, dice it and season with salt and pepper. Sauté in butter until golden and cooked through, then set aside.
Measure out all other ingredients to ensure a smooth cooking process.

Cooking Instructions:

Preheat the Oven:
- Set the oven to 375°F (190°C).
Cook the Base:
- Melt 2 tablespoons of butter in a large pot over medium heat. Add the diced onions and cook until softened, about 5 minutes.
- Stir in the garlic, garlic powder, and thyme. Cook for 1 more minute until fragrant.
- Add the olive oil, chicken broth, and rinsed rice. Stir to combine.
- Bring the mixture to a boil, then reduce to a simmer. Cover tightly and cook for 15 minutes without stirring.
- Turn off the heat, keeping the lid on, and let the rice sit for 10 minutes to release any grains stuck to the bottom of the pot.
Combine Ingredients:
- Stir in the cream of chicken soup, sour cream, milk, Dijon mustard, cheddar cheese, Parmesan cheese, cooked chicken, and diced ham until fully combined.
- Transfer the mixture to a lightly greased 9×13-inch casserole dish.
Add the Toppings:
- Layer the Swiss cheese slices over the casserole. Cover with foil and bake for 15 minutes.
- Combine the melted butter and breadcrumbs in a small bowl. Remove the casserole from the oven, sprinkle the breadcrumb mixture evenly on top, and bake uncovered for another 10 minutes.
Rest and Serve:
- Let the casserole rest for 5 minutes before serving. This allows the flavors to meld together.

Why You’ll Love This Recipe

Easy to Prepare: Simple steps for a one-pot meal that’s perfect for busy weeknights.
Classic Flavor Combo: Combines the creamy, cheesy flavors of chicken cordon bleu in a comforting casserole format.
Family-Friendly: Appeals to both kids and adults with its hearty and satisfying ingredients.

Tips

Rice Preparation: Rinse the rice to prevent it from sticking and ensure even cooking.
Cheese: Use freshly shredded cheese for the best melting and flavor.
Cooking Meat: If preparing chicken from scratch, season well and cook until just golden to avoid drying out.
Rest Time: Allow the casserole to rest after baking for a firmer texture and easier serving.

Variations and Substitutions

Protein: Swap chicken for turkey or use diced smoked sausage for a different flavor.
Cheese Options: Experiment with Gruyère or Monterey Jack for added variety.
Vegetarian: Skip the meat and add sautéed mushrooms or steamed broccoli for a vegetarian version.
Low-Carb: Substitute the rice with cauliflower rice and adjust cooking times.

FAQs

Can I make this ahead of time?
Yes, assemble the casserole without the breadcrumb topping. Cover and refrigerate for up to 24 hours. Add the topping just before baking.

Can I freeze this casserole?
Yes, freeze in an airtight container for up to 3 months. Thaw in the refrigerator overnight before reheating.

Can I use brown rice?
Yes, but adjust the cooking time and liquid according to the package instructions.

What can I substitute for cream of chicken soup?
Make a homemade version using a roux (butter and flour) mixed with chicken broth and milk.

Serving and Suggestions

Pair with a fresh green salad or steamed vegetables for a balanced meal.
Serve with garlic bread or dinner rolls to soak up the creamy sauce.
For added flavor, sprinkle a pinch of smoked paprika or a drizzle of hot sauce over individual servings.