Go Back
–+ servings
Patricia Krouse

French Onion Chicken Orzo Casserole

A comforting casserole that combines caramelized onions, savory chicken, creamy cheese, and tender orzo pasta for a cozy family dinner.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 45 minutes
Total Time 1 hour
Servings: 6 servings
Course: Casserole, Main Course
Cuisine: American, Comfort Food
Calories: 450
Ingredients Method Nutrition Notes

Ingredients
  

For the Casserole
  • 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
  • 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 optional for added depth

Method
 

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

Nutrition

Serving: 1gCalories: 450kcalCarbohydrates: 45gProtein: 26gFat: 20gSaturated Fat: 10gSodium: 800mgFiber: 2gSugar: 4g

Notes

If storing leftovers, keep them in an airtight container in the fridge for up to three days, or freeze for long-term storage. For the best flavor, don't rush the caramelization of your onions. You can also add sautéed mushrooms for an earthy flavor or swap cheeses for variety.

Tried this recipe?

Let us know how it was!