Ultimate Million Dollar Chicken Casserole

Ingredients:
– 4 cups cooked, shredded chicken
– 8 ounces cream cheese, softened
– 1 cup sour cream
– 1 cup cottage cheese
– 1 cup shredded mozzarella cheese
– 1/2 cup grated Parmesan cheese
– 1 (10.5 oz) can cream of chicken soup
– 1 teaspoon garlic powder
– 1 teaspoon onion powder
– 1/2 teaspoon salt
– 1/4 teaspoon black pepper
– 2 cups crushed Ritz crackers
– 1/4 cup melted butter
– 2 tablespoons chopped fresh parsley (optional)