Chicken and Rice Casserole with Cheesy Spinach

1.Preheat your oven to 350°F (175°C).

2.In a large skillet, heat the olive oil over medium heat. Add the chopped onion and sauté until translucent, about 5 minutes.

3.Add the minced garlic to the skillet and cook for another minute until fragrant.

4.Stir in the chicken broth, heavy cream, salt, black pepper, and dried thyme. Bring the mixture to a simmer.

5.Add the cooked rice and shredded chicken to the skillet, stirring until well combined.

6.Fold in the chopped spinach and cook until wilted, about 2 minutes.

7.Remove the skillet from heat and stir in the mozzarella cheese until melted and evenly distributed.

8.Transfer the mixture to a greased 9x13-inch baking dish, spreading it evenly.

9.Sprinkle the grated Parmesan cheese over the top, followed by the breadcrumbs if using.

10.Bake in the preheated oven for 25-30 minutes, or until the top is golden brown and bubbly.

11.Allow the casserole to cool slightly before serving.