01 - Preheat oven to 400°F. Line a baking sheet with parchment paper or lightly grease it with olive oil.
02 - In a large bowl, mix ground turkey, panko breadcrumbs, Parmesan cheese, egg, milk, parsley, basil, thyme, garlic, grated onion, salt, black pepper, and oregano until just combined.
03 - Form mixture into 1- to 1.5-inch meatballs using damp hands or a small scoop, making about 20 meatballs. Arrange evenly on prepared baking sheet.
04 - Drizzle or brush meatballs lightly with olive oil to enhance browning and moisture retention.
05 - Roast in preheated oven for 20 to 25 minutes, turning once halfway through, until meatballs are golden and reach an internal temperature of 165°F.
06 - Serve hot alongside preferred sauces, pasta, or salad.