01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - In a large mixing bowl, combine ground beef, minced garlic, grated ginger, chopped green onions, egg, panko breadcrumbs, Sriracha, soy sauce, sesame oil, salt, and black pepper. Stir until just combined.
03 - Shape the mixture into 20 to 24 small meatballs and arrange them evenly on the prepared baking sheet.
04 - Bake in the preheated oven for 15 to 18 minutes, or until meatballs are cooked through and lightly browned.
05 - Meanwhile, in a small saucepan over medium heat, whisk together Sriracha, honey, soy sauce, rice vinegar, and sesame oil. Bring to a simmer and cook for 2 to 3 minutes until slightly thickened.
06 - Remove meatballs from oven and transfer to a large bowl. Pour the prepared sauce over them and gently toss to coat evenly.
07 - Arrange the glazed meatballs on a serving platter. Sprinkle with toasted sesame seeds, sliced green onions, and fresh cilantro leaves if desired. Serve warm.