French Onion Chicken Orzo Casserole
A comforting and flavorful casserole combining caramelized onions, tender chicken, and tender orzo, perfect for family dinners and gatherings.
Ingredients
Main Ingredients
- 2 tablespoons Olive oil For sautéing the onions.
- 4 cups Yellow onions, thinly sliced The star ingredient, caramelized until golden.
- 3 cloves Garlic, minced Brightens the deep onion flavor.
- 1.5 pounds Boneless skinless chicken breasts or thighs Can be shredded or sliced after baking.
- 2 cups Dry orzo Cooks inside the casserole.
- 4 cups Chicken broth Choose low-sodium to control seasoning.
- 1/2 cup White wine (optional) Adds acidity; substitute extra broth if preferred.
- 1 tablespoon Dijon mustard Adds subtle tang.
- 1 teaspoon Thyme (dried) or 1 tablespoon fresh Earthy herb notes.
- 1.5 cups Gruyere or Swiss cheese, shredded Melts into a creamy, golden top.
- to taste Salt and pepper For seasoning.
- for garnish Fresh parsley For garnishing before serving.
Instructions
Preparation
- Preheat oven to 375°F. Lightly oil a 9x13-inch baking dish.
- Heat olive oil in a large skillet over medium heat. Add sliced onions and a pinch of salt. Cook slowly, stirring occasionally, until deeply golden and caramelized, about 20 minutes.
- Stir in minced garlic for 1 minute, then deglaze the pan with white wine if using, scraping up the browned bits. Let the wine reduce slightly.
- In a large bowl, combine orzo, chicken broth, Dijon mustard, thyme, half of the shredded Gruyere, and the caramelized onions. Season lightly with salt and pepper.
- Arrange raw chicken pieces in the prepared dish and pour the orzo-onion mixture over them, pressing the orzo down so it’s submerged in liquid.
Baking
- Cover tightly with foil and bake for 30 minutes.
- Remove foil, shred or slice the chicken, stir gently to combine, top with remaining cheese, and bake uncovered for another 5-10 minutes until cheese is melty and golden.
- Let the casserole rest for 5 minutes before serving. Sprinkle with fresh parsley and serve warm.
Notes
Use a mix of yellow and sweet Vidalia onions for better caramelization. You can make it lighter or indulge by adjusting the ingredients as desired.