01 - In a large mixing bowl, combine the ground chicken, grated onion, minced garlic, chopped parsley, breadcrumbs, milk, egg, salt, black pepper, oregano, and paprika. Gently mix until just incorporated — avoid overmixing to keep the meatballs tender.
02 - Lightly wet your hands to prevent sticking, then portion the mixture into 16 to 18 evenly sized meatballs, rolling each one gently between your palms.
03 - Heat the olive oil in a large skillet over medium heat until the oil shimmers. Arrange the meatballs in batches, spacing them about 1 inch apart to ensure even browning.
04 - Cook the meatballs for 5 to 7 minutes per side until deeply golden brown and cooked through to an internal temperature of 165°F. For extra juiciness, transfer to a preheated 350°F oven for 5 minutes after pan-frying.
05 - Serve hot alongside your favorite sauce, over pasta, or as a standalone appetizer with toothpicks for easy sharing.