01 - Set the oven to 400°F and line a baking sheet with parchment paper.
02 - In a large bowl, combine ground beef, garlic, ginger, green onions, egg, breadcrumbs, Sriracha, soy sauce, sesame oil, salt, and black pepper. Stir gently until just mixed.
03 - Shape the mixture into 20 to 24 small meatballs and arrange evenly on the prepared baking sheet.
04 - Bake in the preheated oven for 15 to 18 minutes until fully cooked and lightly browned.
05 - While meatballs bake, whisk together Sriracha, honey, soy sauce, rice vinegar, and sesame oil in a small saucepan over medium heat. Simmer for 2 to 3 minutes until the sauce thickens slightly.
06 - Transfer cooked meatballs to a large bowl, pour the warm sauce over them, and toss gently to coat evenly.
07 - Place meatballs on a serving platter, sprinkle with toasted sesame seeds, sliced green onions, and optional cilantro. Serve hot.