01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper or lightly grease it with olive oil.
02 - Combine ground turkey, breadcrumbs, Parmesan cheese, egg, milk, green onions, garlic, oregano, salt, pepper, and chopped parsley in a large bowl. Mix gently until just combined.
03 - Using damp hands, shape the mixture into 1-inch diameter balls and arrange evenly on the prepared baking sheet.
04 - Lightly brush the meatballs with olive oil. Bake 18–20 minutes, turning once halfway through, until golden and cooked through.
05 - While meatballs bake, whisk barbecue sauce, honey, soy sauce, apple cider vinegar, and Dijon mustard in a small saucepan over medium heat. Simmer for 3–4 minutes until slightly thickened.
06 - Transfer the baked meatballs to a large bowl, pour the warm glaze over them, and toss gently to coat evenly.
07 - Arrange meatballs on a serving platter, garnish with additional chopped parsley if desired, and serve warm with cocktail picks.