French Onion Chicken Orzo Casserole

Name: French Onion Chicken Orzo Casserole
Prep time: 15 min
Cook time: 50 min
Total time: 1 h 5 min
Cuisine: French
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; 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

Jack Ellison

Update : November 13, 2025

French onion chicken orzo casserole topped with melted cheese

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Why Make This Recipe

French Onion Chicken Orzo Casserole is a comforting and delicious meal that brings together rich flavors and satisfying textures. This dish combines the classic taste of French onion soup with tender chicken and orzo pasta, making it a perfect choice for family dinners or gatherings. It’s an easy recipe that even beginner cooks can master and enjoy!

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
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

Directions:

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 until the onions are deeply golden and caramelized, stirring occasionally. Add minced garlic during the last 1–2 minutes.
Stir in orzo and cook for 2 minutes to lightly toast. Add shredded chicken, thyme, pepper, and Worcestershire sauce if using. Mix well.
Add chicken broth and cream. Bring to a gentle simmer, reduce heat to low, cover, and cook for 8–10 minutes until orzo is tender, stirring occasionally.
Stir in 1 cup mozzarella and Parmesan cheese until melted and creamy.
Preheat oven to 375°F (190°C). Sprinkle remaining 1/2 cup mozzarella over the top. Bake uncovered for 10–15 minutes until bubbly and golden.
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 warm, straight from the oven. It pairs well with a simple side salad or steamed vegetables. You can also add a sprinkle of fresh herbs for an extra touch of flavor.

How to Store French Onion Chicken Orzo Casserole

Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or microwave until warmed through.

Tips to Make French Onion Chicken Orzo Casserole

Make sure to caramelize the onions well for maximum flavor.
Use cooked rotisserie chicken for a quicker preparation.
Feel free to adjust the cheese amounts based on your preference; more cheese means creamier results!

Variation

You can add different vegetables, like spinach or mushrooms, to give the dish more texture and flavor. For a lighter option, substitute the heavy cream with a low-fat version or use vegetable broth instead of chicken broth.

FAQs

1. Can I use uncooked chicken?
Yes, you can use uncooked chicken. Just cook it first in the skillet before adding the onions.

2. Is there a vegetarian version of this recipe?
Absolutely! You can replace the chicken with extra vegetables and use vegetable broth instead of chicken broth.

3. Can I freeze this casserole?
Yes, you can freeze it. Just make sure it’s cooled completely before transferring to a freezer-safe container. Reheat in the oven when ready to serve.