French Onion Chicken Orzo Casserole
French Onion Chicken Orzo Casserole brings the deep, savory flavor of French onion soup into a hearty, family-friendly baked dinner. Tender chicken, creamy orzo, caramelized onions, and melty Gruyère cheese come together in one cozy casserole that’s rich, comforting, and perfect for make-ahead meals. Ideal for weeknights, leftovers, or casual entertaining, this chicken orzo casserole is comfort food done right.
Ingredients
- Main Ingredients
- 1½ lbs boneless skinless chicken breasts or thighs, cut into bite-sized pieces
- 1½ cups dry orzo pasta
- 2 large yellow onions thinly sliced
- Seasonings Sauces, or Flavor Base
- 3½ cups beef broth or chicken broth
- 2 cloves garlic minced
- 1 teaspoon Italian seasoning or dried thyme
- 1 tablespoon Worcestershire sauce
- Pantry Staples
- 2 tablespoons olive oil or butter
- Salt and black pepper to taste
- 1 cup shredded Gruyère or Swiss cheese
- ½ cup grated parmesan cheese
Instructions
- Preheat oven to 375°F (190°C). Lightly grease a 9×13-inch casserole dish.
- Season chicken lightly with salt and black pepper.
- Heat olive oil or butter in a large skillet over medium heat.
- Add onions and cook slowly, stirring often, for 20–25 minutes until deeply golden and caramelized.
- Stir in garlic and cook 30 seconds until fragrant.
- Add chicken and cook 3–4 minutes until lightly browned (not fully cooked).
- Stir in dry orzo, broth, Worcestershire sauce, and Italian seasoning.
- Transfer mixture to the prepared casserole dish and spread evenly.
- Cover tightly with foil and bake 30 minutes.
- Remove foil, sprinkle with Gruyère and parmesan cheese.
- Bake uncovered 10–15 minutes until bubbly and golden.
- Let rest 5–10 minutes before serving.
Notes
- Take your time caramelizing the onions—this is the heart of the dish’s flavor.
- Beef broth provides classic French onion depth, but chicken broth works well too.
- The casserole thickens as it rests, so don’t skip the resting time.