Name: French Onion Chicken Orzo Casserole
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
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 (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

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Why Make This Recipe

French Onion Chicken Orzo Casserole is a delicious and comforting dish. It combines the rich flavors of caramelized onions with tender chicken and creamy orzo, creating a satisfying meal. It’s perfect for weeknight dinners or a special gathering. The blend of cheese adds a delightful creaminess, making this casserole a family favorite.

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

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.

How to Serve French Onion Chicken Orzo Casserole

You can serve this casserole hot, straight from the oven. It pairs nicely with a side salad or some crusty bread. For an extra touch, sprinkle fresh herbs or a bit more cheese on top before serving.

How to Store French Onion Chicken Orzo Casserole

To store leftovers, let the casserole cool completely. Transfer it to an airtight container and keep it in the refrigerator for up to 3 days. You can reheat individual portions in the microwave or warm the entire casserole in the oven.

Tips to Make French Onion Chicken Orzo Casserole

For deeper flavor, consider using balsamic glaze or Worcestershire sauce.
Stir the orzo occasionally while cooking to prevent it from sticking.
If you like extra crunch, add breadcrumbs on top before baking.

Variation

You can customize this casserole by adding vegetables such as spinach, mushrooms, or bell peppers. Feel free to use different types of cheese, like cheddar or Gruyère, for varied flavor.

FAQs

Can I use uncooked chicken instead of rotisserie chicken?

Yes, you can use uncooked chicken. Just make sure to cook it thoroughly before adding it to the casserole.

Can I make this casserole ahead of time?

Absolutely! You can prepare it a day in advance, store it in the refrigerator, and bake it when ready to serve.

Is it possible to freeze this casserole?

Yes, you can freeze it before baking. Just cover it tightly and store it for up to three months. When ready to eat, thaw it in the fridge overnight and bake as directed.