Keto Chicken Pesto Broccoli Casserole

Name: Keto Chicken Pesto Broccoli Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 3 cups of broccoli florets, cut into similar-sized pieces; 4 cups cooked chicken, shredded; 1 cup sour cream; 4 oz. cream cheese, softened; 3 tablespoons butter, softened; 1/4 cup keto-friendly pesto, such as Mezzetta brand; 1 teaspoon salt; 1 teaspoon black pepper; 1 teaspoon garlic powder; 2 cups mozzarella + provolone cheese, shredded; 1/2 cup parmesan cheese, shredded