Preheat your oven to 375°F (190°C).

Line a baking sheet with parchment paper or lightly grease a loaf pan.

In a large bowl, combine the ground chicken, breadcrumbs, Parmesan cheese, shredded mozzarella, minced garlic, egg, milk, parsley, Italian seasoning, salt, and black pepper.

Mix gently until just combined. Avoid overmixing to keep the meatloaf tender.

Shape the mixture into a loaf on the prepared baking sheet or press it into the loaf pan.

Bake for 35-40 minutes, or until the meatloaf is cooked through and firm. The internal temperature should reach 165°F (74°C).

Remove the meatloaf from the oven and sprinkle extra shredded mozzarella over the top.

Return to the oven and bake for an additional 5-7 minutes, or until the cheese is melted and bubbly.

Let the meatloaf rest for 5 minutes before slicing.

Garnish with fresh parsley and serve with your favorite sides like mashed potatoes, roasted vegetables, or a fresh green salad.