Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a large mixing bowl, combine the ground chicken or turkey, panko breadcrumbs, chopped green onions, minced garlic, beaten egg, grated ginger, and a pinch of salt and pepper. Mix thoroughly until well incorporated.
Scoop out approximately 2 tablespoons of the mixture and roll it into a ball shape. Place the meatball onto the prepared baking sheet. Repeat until all mixture is shaped into meatballs, yielding around 18 to 20 meatballs.
Bake the meatballs in the preheated oven for 15 to 20 minutes, or until golden brown and fully cooked, reaching an internal temperature of 165°F (74°C).
In the final 5 minutes of baking, brush the meatballs generously with teriyaki sauce to caramelize and enhance flavors.
Remove from the oven, sprinkle with toasted sesame seeds, and garnish with fresh cilantro. Serve warm with extra teriyaki sauce for dipping.
Notes
For an appealing presentation, arrange the meatballs on a large serving platter and drizzle with teriyaki sauce.