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French Onion Chicken Orzo Casserole

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  • Author: grace
  • Prep Time: 15 minutes
  • Cook Time: 40 minutes
  • Total Time: 55 minutes
  • Yield: 4 servings 1x
  • Category: Main Course
  • Method: Baking
  • Cuisine: French
  • Diet: Gluten-Free (if using gluten-free pasta)

Description

A comforting casserole that blends caramelized onions, tender chicken, and orzo pasta in a creamy cheese sauce.


Ingredients

Scale
  • 2 tablespoons unsalted butter
  • 1 tablespoon olive oil
  • 2 large yellow onions, thinly sliced
  • 1 teaspoon sugar
  • 1/2 teaspoon salt
  • 3 garlic cloves, minced
  • 1 1/2 cups orzo pasta
  • 2 cups cooked shredded chicken (rotisserie works well)
  • 1/2 teaspoon dried thyme
  • 1/4 teaspoon black pepper
  • 2 cups low-sodium chicken broth
  • 1 cup heavy cream (or half and half for lighter option)
  • 1 1/2 cups shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese
  • Optional: 1/2 teaspoon Worcestershire sauce or balsamic glaze

Instructions

  1. Preheat your oven to 375°F (190°C).
  2. Melt the butter and olive oil in a large oven-safe skillet or Dutch oven over medium heat.
  3. Add the sliced onions, sugar, and salt, and cook for 20–25 minutes, stirring occasionally until caramelized.
  4. Stir in the minced garlic during the last 1–2 minutes of cooking.
  5. Add the orzo pasta and let it cook for about 2 minutes.
  6. Add the shredded chicken, thyme, black pepper, and Worcestershire sauce if using, mixing well.
  7. Pour in the chicken broth and heavy cream, bring to a gentle simmer, cover, and cook for 8–10 minutes until the orzo is tender.
  8. Remove from heat, stir in 1 cup of mozzarella and Parmesan until melted and creamy.
  9. Sprinkle remaining mozzarella on top and bake uncovered for 10–15 minutes until bubbly and golden brown.
  10. Let it rest for 5–10 minutes before serving.

Notes

For added flavor, use high-quality chicken broth and feel free to adapt with different cheeses or add vegetables.


Nutrition

  • Serving Size: 1 serving
  • Calories: 400
  • Sugar: 6g
  • Sodium: 600mg
  • Fat: 18g
  • Saturated Fat: 10g
  • Unsaturated Fat: 5g
  • Trans Fat: 0g
  • Carbohydrates: 40g
  • Fiber: 2g
  • Protein: 25g
  • Cholesterol: 70mg