Preheat oven: Set oven to 375°F (190°C). Lightly grease a baking dish or line a baking sheet with parchment.
Mix: In a large bowl, combine ground chicken, Parmesan, breadcrumbs, egg, garlic, onion, parsley, Italian seasoning, paprika, salt, pepper, and milk. Mix gently until just combined.
Shape: Divide the mixture into 4–6 individual mini meatloaves or shape into one large loaf.
Bake: Place in the prepared dish and lightly brush the tops with olive oil. Bake for 25–30 minutes for mini loaves or 40–45 minutes for one large loaf.
Add cheese: Sprinkle mozzarella or extra Parmesan over the top during the final 5 minutes of baking.
Check doneness: Cook until the chicken reaches an internal temperature of 165°F (74°C).
Rest & serve: Let the meatloaves rest for 5 minutes before serving. Garnish with fresh parsley.
