01 - Preheat the oven to 400°F and line a baking sheet with parchment paper.
02 - Combine ground beef, minced garlic, grated ginger, chopped green onions, egg, panko breadcrumbs, Sriracha, soy sauce, sesame oil, salt, and black pepper in a large bowl. Mix gently until just combined.
03 - Shape the mixture into 20 to 24 small meatballs and arrange them evenly on the prepared baking sheet.
04 - Bake for 15 to 18 minutes until meatballs are cooked through and have a light golden-brown exterior.
05 - In a small saucepan over medium heat, whisk together Sriracha, honey, soy sauce, rice vinegar, and sesame oil. Simmer for 2 to 3 minutes until slightly thickened.
06 - Transfer baked meatballs to a large bowl, pour the sauce over them, and toss gently to coat evenly.
07 - Arrange meatballs on a serving platter, sprinkle with toasted sesame seeds, sliced green onions, and fresh cilantro leaves if desired. Serve immediately.