Chicken Mushroom Spinach Lasagna

Name: Chicken Mushroom Spinach Lasagna
Prep time: 30 min
Cook time: 1 h 30 min
Total time: 2 h
Yield: 8
Ingredients: Ingredients; White Sauce; 4 tablespoons butter; 4 tablespoons all-purpose flour; 3 cups whole milk, warmed; 1/2 cup heavy cream; 1/4 teaspoon nutmeg; Salt and white pepper to taste; 12 lasagna noodles; 2 lbs boneless, skinless chicken breasts, cubed; 3 tablespoons olive oil, divided; 1 lb mixed mushrooms (cremini, shiitake, or button), sliced; 4 cloves garlic, minced; 1 medium onion, diced; 5 oz fresh baby spinach; 1/2 cup dry white wine (optional); Salt and black pepper to taste; 1 teaspoon dried thyme; 1/2 teaspoon dried oregano; Cheese Layer; 15 oz ricotta cheese; 1 large egg; 1/4 cup fresh basil, chopped; 2 cups shredded mozzarella cheese, divided; 1 cup freshly grated Parmesan cheese, divided