Why make this recipe

French Onion Chicken Orzo Casserole is a delightful dish that combines the rich flavors of caramelized onions and creamy cheese with tender pasta and chicken. It’s perfect for family dinners or gatherings, bringing warmth and comfort to the table. This recipe is simple and uses everyday ingredients, making it accessible for anyone to try. Whether you’re skilled in the kitchen or a novice, this casserole is sure to impress.

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 a 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 the 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 the shredded chicken, thyme, pepper, and Worcestershire sauce if you are using it. Mix well.
Pour in Liquids: Add the chicken broth and cream. Bring to a gentle simmer. Reduce the 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 of mozzarella and the Parmesan cheese. Mix until melted and creamy.
Bake the Casserole: Preheat the oven to 375°F (190°C). Sprinkle the remaining 1/2 cup of 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

Serve the casserole warm, directly from the oven. It pairs wonderfully with a simple green salad or some crusty bread to soak up the creamy sauce. For an extra touch, sprinkle fresh herbs like thyme or parsley on top to enhance the dish’s flavor and presentation.

How to store French Onion Chicken Orzo Casserole

Leftover casserole can be stored in an airtight container in the refrigerator for up to 3 days. For longer storage, freeze it in a freezer-safe container for up to 2 months. When ready to eat, thaw overnight in the fridge and reheat in the oven or microwave until warmed through.

Tips to make French Onion Chicken Orzo Casserole

Use Rotisserie Chicken: This is a time-saver and adds great flavor.
Caramelize Onions Slowly: Take your time with the onions; the deeper the caramelization, the more flavor they will add.
Adjust Cream: For a lighter dish, use half and half instead of heavy cream.
Mix Cheese Variations: Feel free to mix in other cheeses like cheddar or gouda for added flavor.

Variation

For a vegetarian version, skip the chicken and replace it with extra vegetables like mushrooms or bell peppers. Add more broth and cream as needed to maintain the creamy texture.

FAQs

Can I use whole wheat orzo?
Yes, whole wheat orzo can be used. Just keep an eye on the cooking time, as it may take a little longer to cook.
Can I prepare this casserole in advance?
Absolutely! You can prepare it up to the baking step, cover it tightly, and refrigerate it overnight. Bake it just before serving.
What can I use instead of mozzarella?
You can use other melty cheeses like provolone or fontina for a different flavor.