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French Onion Chicken Orzo Casserole

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This French onion chicken orzo casserole combines caramelized onions, tender chicken, creamy orzo, and melted cheese into a comforting and elegant dish. It’s rich, savory, and perfect for cozy dinners.

  • Author: Ella
  • Prep Time: 20 minutes
  • Cook Time: 25 minutes
  • Total Time: 45 minutes
  • Yield: 4–6 servings
  • Category: Main Course
  • Method: Baked
  • Cuisine: French-American
  • Diet: Low Lactose

Ingredients

  • 2 cups cooked chicken (shredded or diced)
  • 1 cup uncooked orzo pasta
  • 3 large yellow onions, thinly sliced
  • 2 tablespoons butter
  • 1 tablespoon olive oil
  • 2 cups chicken broth
  • 1 cup milk or heavy cream
  • 1 teaspoon fresh thyme (or 1/2 teaspoon dried thyme)
  • 2 cloves garlic, minced
  • 1 cup shredded Gruyère cheese (or Swiss cheese)
  • 1/2 cup grated Parmesan cheese
  • Salt and pepper to taste
  • Fresh parsley (for garnish, optional)

Instructions

  1. Preheat oven to 375°F (190°C) and lightly grease a baking dish.
  2. In a large skillet, heat butter and olive oil over medium-low heat. Add sliced onions and cook for 25–30 minutes, stirring occasionally, until golden brown and caramelized.
  3. Add garlic and thyme; cook for 1 minute until fragrant.
  4. Stir in uncooked orzo and toast for 1–2 minutes.
  5. Add chicken broth and milk. Stir to combine and bring to a gentle simmer.
  6. Add cooked chicken, salt, and pepper. Mix well.
  7. Transfer mixture to the prepared baking dish. Top with Gruyère and Parmesan cheese.
  8. Bake for 20–25 minutes, until bubbly and golden.
  9. Let cool slightly before serving. Garnish with parsley if desired.

Notes

  • Use rotisserie chicken for convenience and extra flavor.
  • For a lighter version, use milk and reduced-fat cheese.
  • Add mushrooms, broccoli, or herbs for variations.
  • Store leftovers in the fridge up to 3 days; reheat with a splash of broth or milk if needed.

Nutrition

Find it online: https://elladishes.com/french-onion-chicken-orzo-casserole/