Crafting the French Onion Chicken Orzo Casserole is straightforward if you follow these steps:

1. Preheat Oven: Preheat your oven to 375°F (190°C).
2. Sauté Onions: In a large skillet, heat olive oil over medium heat. Add the sliced onions and a pinch of salt, and cook for about 15-20 minutes until they are golden brown and caramelized, stirring often.
3. Add Chicken: Increase the heat to medium-high. Add the diced chicken to the skillet with the onions and cook until the chicken is browned on all sides.
4. Season: Mix in garlic powder, thyme, salt, and pepper. Stir everything together for 2-3 minutes.
5. Combine Ingredients: Add the orzo pasta to the skillet along with the chicken broth and heavy cream. Stir until everything is evenly combined.
6. Add Cheese: Sprinkle half of the Gruyère cheese over the mixture, stirring to incorporate.
7. Transfer to Casserole Dish: Carefully pour the mixture into a greased 9×13 inch casserole dish.
8. Top with Cheese: Spread the remaining Gruyère cheese evenly on top of the casserole.
9. Bake: Place the casserole in the preheated oven and bake for 30-35 minutes or until the orzo is cooked through and the top is golden and bubbly.
10. Cool Slightly: Remove from the oven and let it cool for about 5-10 minutes before serving.
11. Garnish: Sprinkle with chopped parsley for a touch of freshness and color.

Following these steps will ensure a successful and flavorful French Onion Chicken Orzo Casserole that you and your loved ones will enjoy!