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Chicken Cordon Bleu Casserole

Prep Time 10 minutes
Cook Time 1 hour
Total Time 1 hour 10 minutes
Servings 6
Calories 566
A rich and creamy casserole featuring tender chicken, savory ham, melted Swiss cheese, and a crunchy breadcrumb topping. Perfect for meal prep and freezer-friendly!

Ingredients

Base Casserole

  • 2 tbsp butter
  • ½ cup yellow onion, diced
  • 3 cloves garlic, minced
  • 1 tbsp olive oil
  • 1 tsp dried thyme
  • ½ tsp  garlic powder
  • 2½ cups chicken broth
  • 1¼ cups  white long-grain rice, uncooked
  • 10.75 oz cream of chicken soup
  • ½ cup sour cream
  • 1 cup milk
  • 2 tsp Dijon mustard
  • ⅓ cup grated Parmesan cheese
  • 1 cup  cooked chicken, diced or shredded
  • 8 oz ham steak (or 1 cup diced ham)
  • 9 slices Swiss cheese

Topping

  • ⅓ cup seasoned breadcrumbs
  • 1 tbsp melted butter

Instructions 

Prep Work

  • Rinse the Rice: Place the uncooked rice in a strainer and rinse under cool water for 1 minute to remove excess starch.
  • Shred Cheese: Set shredded cheese aside to bring it to room temperature for better melting. Avoid pre-packaged shredded cheese, as it contains anti-caking agents.
  • Prepare Chicken: If using raw chicken, dice and season with salt and pepper. Sauté in butter until golden and cooked through. Set aside.
  • Measure Ingredients: Have all ingredients prepped before cooking.

Cooking Instructions

  • Preheat oven to 375°F (190°C).
  • Sauté Onions: In a large pot, melt 2 tbsp butter over medium heat. Add diced onions and cook for 5 minutes until softened.
  • Add Garlic & Seasonings: Stir in garlic, thyme, and garlic powder. Cook for another minute.
  • Cook the Rice: Pour in olive oil, chicken broth, and rice. Stir to combine. Bring to a boil, then reduce heat to a simmer. Cover and cook for 15 minutes without stirring.
  • Let It Rest: Turn off heat and leave the lid on for 10 minutes. This allows any stuck rice to release from the pot.
  • Mix Ingredients: Stir in cream of chicken soup, sour cream, milk, Dijon mustard, cheddar cheese, Parmesan cheese, cooked chicken, and ham.
  • Assemble the Casserole: Transfer mixture to a lightly greased 9x13-inch casserole dish. Layer Swiss cheese slices on top. Cover and bake for 15 minutes.
  • Add Topping: Mix melted butter with breadcrumbs and sprinkle over the casserole. Bake uncovered for another 10 minutes until golden brown.
  • Let It Rest: Allow the casserole to sit for 5 minutes before serving.
Calories: 566kcal
Course: Main Course
Cuisine: American, French-inspired
Keyword: Chicken Cordon Bleu