Million Dollar Chicken Alfredo Bake

Ingredients

• 1 pound cellentani, ziti, or penne pasta
• 5 tablespoons unsalted butter
• 6 garlic cloves, plus more to taste, minced
• 1/3 cup all-purpose flour
• 2 cups low-sodium chicken broth
• 3 cups half-and-half
• 1 teaspoon onion powder
• 1 teaspoon dried parsley
• 1 teaspoon dried basil
• 1 teaspoon salt
• 1/2 teaspoon dried thyme
• 1/2 teaspoon pepper
• 1/2 teaspoon chicken bouillon
• 1/2 teaspoon red pepper flakes
• 2 cups parmesan cheese, freshly grated
• 2 cups rotisserie chicken, shredded
• 6 slices provolone cheese, plus more to taste
• 1 cup sour cream
• 1 cup mozzarella cheese, freshly grated