Recipe: Healthier Chicken and Rice Casserole

Name: Recipe: Healthier Chicken and Rice Casserole
Ingredients: Cooking spray; 1 1/2 pounds boneless, skinless chicken breasts, cut into 1-inch pieces; 1 1/2 cups cauliflower rice (8 ounces, from 4 cups cauliflower); 1 cup medium-grain brown rice; 1 cup peeled, diced carrots; 1 tablespoon fresh thyme leaves; 1/2 teaspoon kosher salt; 1/4 teaspoon freshly ground black pepper; 1 tablespoon olive oil; 8 ounces cremini mushrooms, thinly sliced; 2 1/2 tablespoons unsalted butter; 2 1/2 tablespoons all-purpose flour; 2 1/2 cups low-sodium chicken broth; 2 tablespoons low-fat plain Greek yogurt; 1/4 cup freshly grated Parmesan cheese