Preheat the oven to 350°F and spray a 9×5×2-inch loaf pan with nonstick cooking spray.

In a large mixing bowl, combine ground chicken, breadcrumbs, grated Parmesan cheese, minced onion, minced garlic, egg, milk, chopped parsley, salt, and black pepper.

Use clean hands or a large spoon to mix until the ingredients are well combined.

Form the meat mixture into a loaf, and place it into the prepared loaf pan. Top with shredded parmesan cheese and the remaining chopped parsley.

Bake in the preheated oven for 1 hour. Broil for the last 2 minutes to get the top golden brown. Watch it closely!