French Onion Chicken Orzo Casserole
Warm, savory, and utterly comforting, French Onion Chicken Orzo Casserole brings together the rich flavors of beloved French onion soup and the satisfying heartiness of a casserole. This dish is perfect for family dinners or special occasions when you want to impress your guests with something unique yet familiar. A wonderful mixture of tender chicken, creamy orzo, and melted cheese will delight your taste buds and warm your soul.
Combining the sweetness of caramelized onions with savory chicken and creamy pasta, this casserole is both nostalgic and innovative. It captures the essence of a classic, transforming it into a one-dish wonder that is sure to become a family favorite. The recipe is straightforward and accessible for both novice cooks and seasoned chefs alike, ensuring that everyone can enjoy this culinary delight.
Why make this recipe
French Onion Chicken Orzo Casserole is a magnificent way to enjoy the deep, rich flavors of French onion soup in a new format. The caramelized onions add a sweet, robust flavor that permeates throughout the dish, allowing every bite to shine with depth and warmth. The orzo pasta provides a delightful chewy texture, soaking up the creamy broth and delivering a satisfying mouthfeel that complements the chicken beautifully. This recipe cleverly combines these components into a convenient and comforting casserole that is perfect for any table.
Moreover, the use of shredded rotisserie chicken makes this dish not only a crowd-pleaser, but it also presents a quick and efficient option for busy weeknights. There’s something incredibly heartwarming about a hearty casserole filled with wholesome ingredients that come together in perfect harmony, making this recipe ideal for family gatherings or even just a cozy night at home. Its minimal prep work and the comforting aroma that fills the kitchen while it bakes make it a delightful centerpiece for any meal.
How to make French Onion Chicken Orzo Casserole
To create this comforting dish, the foundation is built upon caramelizing onions. Taking the time to slowly cook the onions allows their natural sugars to develop, creating that unmistakable, golden-brown color and sweet flavor that defines French onion cuisine. The combination of butter and olive oil allows the onions to soften and caramelize without burning, creating a luscious base for this comforting casserole.
Once the onions have reached the pinnacle of sweetness, the recipe seamlessly transitions to adding orzo; a small, rice-shaped pasta that perfectly complements the creamy consistency of the casserole. Toasting the orzo with the onions for a brief moment intensifies its flavor, creating a richer and more complex dish. Rotisserie chicken adds protein and depth, making it a practical and delicious choice as it eliminates the need for additional cooking.
The dish is further enriched by mixing in a blend of chicken broth and heavy cream, creating a luscious sauce that ties all the elements together. After simmering, the cheese brings everything to a creamy conclusion, creating a decadent blanket of melt-in-your-mouth goodness that’s simply irresistible. By baking the casserole, we not only enhance the texture but also allow the top layer of cheese to become bubbly and golden – a perfect finish to this mouthwatering meal.
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
- 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.
- 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 if using. Mix well.
- 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.
- Add Cheese: Stir in 1 cup mozzarella and the Parmesan cheese. Mix until melted and creamy.
- 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.
- Serve: Let it rest for 5–10 minutes before serving. Garnish with fresh thyme or parsley if desired.
Time Breakdown
• Preparation Time: 15 minutes
• Cooking Time: 35 minutes
• Baking Time: 15 minutes
• Total Time: 65 minutes
• Servings: 6-8
How to serve French Onion Chicken Orzo Casserole
When it comes time to serve the French Onion Chicken Orzo Casserole, presentation adds an extra touch to the experience. Allowing the casserole to rest for a few minutes post-baking ensures that it holds together well while serving, making it easier to scoop out portions. It can be dished up in bowls or on plates, topped with a sprinkle of freshly chopped herbs, such as parsley or thyme, to add a pop of color and freshness.
Pairing this casserole with a simple green salad dressed in a light vinaigrette can complement its richness. A crusty piece of bread or warm rolls on the side can be delightful too, offering a great vehicle for soaking up any extra creamy sauce that might be left on the plate. This comforting dish, with its cheesy, textural elements, stands beautifully alone but shines when accompanied by fresh greens and crusty bread.
How to store French Onion Chicken Orzo Casserole
To store leftovers of this hearty casserole, allow it to cool completely before transferring it to an airtight container. It can be kept in the refrigerator for up to three days. To reheat, simply place it in the oven at 350°F (175°C) until heated through or microwave it in individual servings for quicker reheating. If you prefer to freeze it, divide it into portions and store in airtight freezer-safe containers or freezer bags. It can be kept frozen for up to three months. Thaw overnight in the refrigerator and reheat as needed for a comforting, ready-made meal.
Tips to make French Onion Chicken Orzo Casserole
When preparing the French Onion Chicken Orzo Casserole, you might consider adjusting the amount of caramelization for the onions according to your flavor preference. More caramelization can enhance the sweetness and depth of the casserole. If you find that the casserole looks to be drying out while cooking, feel free to add a splash of additional broth or cream to maintain the creamy texture.
Using half and half instead of heavy cream can yield a lighter dish without sacrificing flavor. Additionally, feel free to experiment with different cheeses – gouda or gruyère could add an interesting twist to the flavor profile. Incorporating some sautéed mushrooms or spinach could also provide an additional layer of complexity and nutrition to the dish, making it even more appealing.
Variation
No major variations, but you can adjust seasonings to taste.
Nutritional Information (Per Serving)
• Calories: 520 kcal
• Protein: 30 g
• Carbohydrates: 42 g
• Fat: 25 g
• Fiber: 2 g
• Sugar: 2 g
• Sodium: 700 mg
FAQs
Q: Can I use different types of pasta?
A: Yes, while orzo is traditional for this dish, other small pasta shapes like ditalini or even rice can be used if you prefer.
Q: Is it possible to make this ahead of time?
A: Absolutely! You can prepare the casserole up to the baking stage and store it in the refrigerator overnight. Bake it just before serving.
Q: Can I use frozen chicken instead of rotisserie?
A: Yes, if using frozen chicken, ensure you cook it thoroughly before shredding and adding it to the casserole.

French Onion Chicken Orzo Casserole
Ingredients
For the Caramelized Onions
- 2 tablespoons unsalted butter
- 1 tablespoon olive oil
- 2 large yellow onions, thinly sliced
- 1 teaspoon sugar
- 1/2 teaspoon salt
- 3 cloves garlic, minced added towards the end of caramelization
Main Ingredients
- 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 a lighter option
- 1 1/2 cups shredded mozzarella cheese
- 1/2 cup grated Parmesan cheese
- 1/2 teaspoon Worcestershire sauce or balsamic glaze optional for added depth
Instructions
Preparation
- 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.
Cooking the Ingredients
- 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.
Building the Casserole
- 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.
- Stir in 1 cup mozzarella and the Parmesan cheese. Mix until melted and creamy.
Baking 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.
Serving
- Let it rest for 5–10 minutes before serving. Garnish with fresh thyme or parsley if desired.