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French Onion Chicken Orzo Casserole

French Onion Chicken Orzo Casserole

A comforting casserole combining caramelized onions, tender chicken, and creamy orzo baked under a cheesy crust reminiscent of classic French onion soup.
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Prep Time 15 minutes
Cook Time 40 minutes
Resting Time 5 minutes
Total Time 1 hour
Servings: 6 servings
Course: dinner
Cuisine: American
Calories: 350
Ingredients Method Notes

Ingredients
  

Casserole
  • 2 tablespoons unsalted butter
  • 2 medium yellow onions thinly sliced
  • 2 teaspoons minced garlic
  • 2 teaspoons Italian seasoning
  • 0.25 teaspoon kosher salt
  • 0.25 teaspoon freshly ground black pepper
  • 1 packet dry French onion soup mix 1 ounce
  • 2 cups low sodium chicken broth
  • 1 cup water
  • 1.5 cups uncooked orzo pasta
  • 2 boneless skinless chicken breasts cut into bite sized pieces
  • 0.5 cup shredded Gruyère cheese
  • 0.5 cup shredded mozzarella cheese
  • 2 tablespoons chopped fresh parsley

Method
 

Preparation
  1. Preheat oven to 375°F and grease a 9×13-inch baking dish.
Stovetop
  1. In a large skillet over medium heat, melt butter. Add onions, salt, and pepper. Cook until onions are golden and soft, about 8–10 minutes.
  2. Stir in garlic and Italian seasoning; cook for 1 minute until fragrant.
  3. Add dry soup mix, chicken broth, water, and orzo. Bring to a simmer and cook for 2–3 minutes.
  4. Stir in chicken pieces.
Baking
  1. Transfer mixture to prepared dish. Cover with foil and bake for 30 minutes.
  2. Remove foil; top with Gruyère and mozzarella. Bake, uncovered, for 10 minutes until cheese is melted and bubbly.
Finishing
  1. Let rest for 5 minutes. Garnish with parsley and serve.

Notes

Make sure onions are uniformly sliced to ensure even caramelization.
Leftovers can be stored in the refrigerator for up to 4 days in an airtight container.