French Onion Chicken Orzo Casserole

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French Onion Chicken Orzo Casserole topped with melted cheese and crispy onions

why make this recipe

French Onion Chicken Orzo Casserole is a comforting dish that combines the flavors of caramelized onions, tender chicken, and creamy orzo pasta. It’s perfect for family dinners or gatherings, as it’s easy to prepare and serves many. Plus, the delicious cheese topping adds that final touch of goodness that everyone loves. If you crave a warm and hearty meal, this casserole is the way to go!

how to make French Onion Chicken Orzo Casserole

Ingredients :

  • 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 (for added depth)

Directions :

  1. Caramelize the Onions: In a large oven-safe skillet or Dutch oven, melt the butter and olive oil over medium heat. Add sliced onions, sugar, and salt. Cook for 20–25 minutes, stirring occasionally, until the onions are deeply golden and caramelized. Stir in the minced garlic during the last 1–2 minutes.
  2. Add Orzo and Chicken: Stir in the orzo and cook for 2 minutes, allowing it to lightly toast. Add shredded chicken, thyme, pepper, and Worcestershire sauce if using. Mix well.
  3. Pour in Liquids: Add the chicken broth and cream. Bring to a gentle simmer. Reduce heat to low, cover, and let it cook for 8–10 minutes, stirring occasionally, until the orzo is tender.
  4. Add Cheese: Stir in 1 cup mozzarella and the Parmesan cheese. Mix until melted and creamy.
  5. Bake the Casserole: Preheat oven to 375°F (190°C). Sprinkle the remaining 1/2 cup mozzarella over the top. Bake uncovered for 10–15 minutes until bubbly and golden on top.
  6. Serve: Let it rest for 5–10 minutes before serving. Garnish with fresh thyme or parsley if desired.

how to serve French Onion Chicken Orzo Casserole

Serve this casserole hot from the oven. It pairs well with a simple green salad or some crusty bread. You can also add a sprinkle of fresh thyme or parsley on top for color and extra flavor.

how to store French Onion Chicken Orzo Casserole

Store any leftovers in an airtight container in the refrigerator. It should stay fresh for up to 3-4 days. You can also freeze it for longer storage. Just make sure to wrap it well to prevent freezer burn. When ready to eat, reheat in the oven or microwave.

tips to make French Onion Chicken Orzo Casserole

  • For extra flavor, you can sauté some mushrooms along with the onions.
  • Make sure not to skip the caramelizing step for the onions; this is what gives the dish its rich flavor.
  • Adjust the amount of cheese to your liking; feel free to add more for a cheesier experience.

variation

If you want to change things up, try adding some sautéed vegetables like bell peppers or spinach. You can also use different types of cheese, such as gouda or cheddar, to give it a unique taste.

FAQs

  1. Can I use uncooked chicken?
    Yes, you can use uncooked chicken, but you will need to ensure it’s cooked through before serving. Add the chicken earlier in the process to allow it to cook properly.

  2. Can I use other types of pasta instead of orzo?
    Yes, you can substitute orzo with small pasta shapes like ditalini or small shells. Cooking times may vary, so keep an eye on them.

  3. Can this casserole be made ahead of time?
    Absolutely! You can prepare the casserole ahead of time and store it in the fridge. Just bake it when you’re ready to serve.

Print
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French Onion Chicken Orzo Casserole

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A comforting casserole combining caramelized onions, tender chicken, and creamy orzo pasta, topped with cheese for an easy family dinner.

  • Total Time: 60 minutes
  • Yield: 6 servings 1x

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
  • 1/2 teaspoon dried thyme
  • 1/4 teaspoon black pepper
  • 2 cups low-sodium chicken broth
  • 1 cup heavy cream
  • 1 1/2 cups shredded mozzarella cheese
  • 1/2 cup grated Parmesan cheese
  • Optional: 1/2 teaspoon Worcestershire sauce or balsamic glaze

Instructions

  1. In a large oven-safe skillet or Dutch oven, melt the butter and olive oil over medium heat. Add sliced onions, sugar, and salt. Cook for 20–25 minutes, stirring occasionally, until the onions are deeply golden and caramelized. Stir in the minced garlic during the last 1–2 minutes.
  2. Stir in the orzo and cook for 2 minutes, allowing it to lightly toast. Add shredded chicken, thyme, pepper, and Worcestershire sauce if using. Mix well.
  3. Add the chicken broth and cream. Bring to a gentle simmer. Reduce heat to low, cover, and let it cook for 8–10 minutes, stirring occasionally, until the orzo is tender.
  4. Stir in 1 cup mozzarella and the Parmesan cheese. Mix until melted and creamy.
  5. Preheat oven to 375°F (190°C). Sprinkle the remaining 1/2 cup mozzarella over the top. Bake uncovered for 10–15 minutes until bubbly and golden on top.
  6. Let it rest for 5–10 minutes before serving. Garnish with fresh thyme or parsley if desired.

Notes

For extra flavor, sauté some mushrooms with the onions. Adjust cheese to personal taste.

  • Author: alison
  • Prep Time: 15 minutes
  • Cook Time: 45 minutes
  • Category: Casserole
  • Method: Baking
  • Cuisine: French
  • Diet: Mixed

Nutrition

  • Serving Size: 1 serving
  • Calories: 450
  • Sugar: 6g
  • Sodium: 600mg
  • Fat: 24g
  • Saturated Fat: 12g
  • Unsaturated Fat: 10g
  • Trans Fat: 0g
  • Carbohydrates: 38g
  • Fiber: 2g
  • Protein: 22g
  • Cholesterol: 65mg

Hey, I’m barbara !

As a chef, I believe good food doesn’t need to be complicated. I draw inspiration from comforting favorites and bold flavors, creating dishes that connect people and spark joy—one bite at a time.

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