Go Back
French Onion Chicken Orzo Casserole
Caroline

French Onion Chicken Orzo Casserole

This French onion chicken orzo casserole combines deeply caramelized onions, tender shredded chicken, and creamy, cheesy orzo baked until bubbly and golden. Inspired by classic French onion soup flavors, it’s a comforting one-pan dinner.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 55 minutes
Total Time 1 hour 10 minutes
Servings: 6 servings
Course: Casserole, Main Dish
Cuisine: French-Inspired
Calories: 520
Ingredients Equipment Method Notes

Ingredients
  

  • 2 tbsp unsalted butter
  • 1 tbsp olive oil
  • 2 large yellow onions, thinly sliced
  • 1 tsp sugar
  • ½ tsp salt
  • 3 cloves garlic, minced
  • 1½ cups orzo pasta
  • 2 cups cooked shredded chicken
  • ½ tsp dried thyme
  • ¼ tsp black pepper
  • 2 cups low-sodium chicken broth
  • 1 cup heavy cream or half and half
  • 1½ cups shredded mozzarella cheese
  • ½ cup grated Parmesan cheese
  • ½ tsp Worcestershire sauce or balsamic glaze (optional)

Equipment

  • large oven-safe skillet or Dutch oven
  • wooden spoon or spatula
  • measuring cups and spoons
  • oven

Method
 

  1. Heat the butter and olive oil in a large oven-safe skillet or Dutch oven over medium heat.
  2. Add the onions, sugar, and salt. Cook for 20 to 25 minutes, stirring occasionally, until deeply golden and caramelized.
  3. Add the garlic and cook for 1 to 2 minutes until fragrant.
  4. Stir in the orzo and cook for 2 minutes to lightly toast.
  5. Add the shredded chicken, dried thyme, black pepper, and Worcestershire sauce if using. Stir to combine.
  6. Pour in the chicken broth and cream, stirring well, and bring to a gentle simmer.
  7. Reduce heat, cover, and cook for 8 to 10 minutes, stirring occasionally, until the orzo is tender.
  8. Stir in 1 cup of the mozzarella cheese and all of the Parmesan cheese until melted and creamy.
  9. Preheat the oven to 375°F (190°C).
  10. Sprinkle the remaining mozzarella evenly over the top.
  11. Bake uncovered for 10 to 15 minutes, until bubbly and lightly golden.
  12. Let the casserole rest for 5 to 10 minutes before serving.

Notes

Garnish with fresh thyme or parsley for added color and freshness. Add a splash of extra chicken broth if the casserole thickens too much. This dish continues to thicken as it cools and reheats beautifully, making it ideal for meal prep and freezer-friendly dinners.