Chicken Bacon Ranch Casserole

Name: Chicken Bacon Ranch Casserole
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: American
Ingredients: 6 oz penne pasta (cooked); ½ cup sour cream; ⅓ cup buttermilk; 3 garlic cloves (minced); 1 teaspoon dried parsley; 1 teaspoon dried dill; 1 teaspoon dried chives; Salt and black pepper (to taste); 1 cup shredded mozzarella cheese (divided); 7 oz Alfredo sauce (see note); 2 bacon slices (cooked and chopped); 1 cup rotisserie chicken (boneless, skinless, chopped); Chopped parsley (for topping, optional)