Preheat your oven to 190°C (375°F).
In a large mixing bowl, combine the ground chicken, grated Parmesan cheese, breadcrumbs, fresh parsley, minced garlic, beaten egg, dried oregano, fine sea salt, and freshly ground black pepper.
Pour in the whole milk and mix gently until everything is uniform and cohesive.
Divide the mixture evenly into four portions and shape them into compact mini loaves.
Drizzle each mini loaf with extra virgin olive oil and sprinkle some grated mozzarella over the tops if desired.
Bake for about 25–30 minutes until golden brown and the internal temperature reaches at least 74°C (165°F).
Remove from oven and allow to rest for about five minutes before serving.