01 -
Melt 4 tbsp unsalted butter in a large oven-safe pot or Dutch oven over medium-low heat. Add 3 large yellow onions, thinly sliced, and cook for 25-30 minutes, stirring occasionally, until deeply golden brown and sweet. Add 4 cloves garlic, minced, for the last minute.
02 -
Pour in 1/2 cup dry white wine, scraping up any browned bits from the pot. Stir in 1 tbsp fresh thyme, chopped, 4 cups chicken broth, 1 bay leaf, 1 1/2 cups orzo pasta, uncooked, 1 1/2 tsp salt, and 1/2 tsp black pepper. Bring to a simmer.
03 -
In a separate large skillet, heat 2 tbsp olive oil over medium-high heat. Season 1 1/2 lbs boneless, skinless chicken thighs, cut into 1-inch pieces, with salt and pepper. Sear chicken for 5-7 minutes until browned and cooked through. Set aside.
04 -
Once the orzo is al dente (about 10-12 minutes of simmering), remove and discard the bay leaf. Stir in the cooked 1 1/2 lbs boneless, skinless chicken thighs. This forms the hearty base of your Comforting French Onion Chicken Orzo Casserole.
05 -
In a small bowl, combine 1 1/2 cups Gruyere cheese, shredded, 1/2 cup Parmesan cheese, shredded, and 1/2 cup Panko breadcrumbs. This rich and melty topping will crown your Comforting French Onion Chicken Orzo Casserole.
06 -
Preheat oven to 375°F (190°C). Transfer the orzo and chicken mixture to a 9x13 inch baking dish. Evenly sprinkle the cheesy topping over the casserole. Bake for 20-25 minutes, or until bubbly and golden brown.
07 -
Let the Comforting French Onion Chicken Orzo Casserole rest for 5-10 minutes before serving. This allows the flavors to meld and the casserole to set, ensuring perfect portions for your family and friends.