01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - In a large bowl, combine ground beef, egg, breadcrumbs, Sriracha, garlic, ginger, spring onions, soy sauce, sesame oil, salt, and pepper. Mix until just combined—do not overwork.
03 - With damp hands, form mixture into 16 evenly sized meatballs and place on the prepared baking sheet.
04 - Bake for 15–18 minutes until browned and cooked through.
05 - While meatballs bake, prepare the glaze: in a small saucepan, combine Sriracha, honey, soy sauce, rice vinegar, and sesame oil. Bring to a simmer over medium heat and cook for 2–3 minutes, stirring, until slightly thickened.
06 - Remove meatballs from oven and transfer to a large bowl. Pour glaze over meatballs and toss to coat evenly.
07 - Transfer glazed meatballs to a serving platter. Sprinkle with toasted sesame seeds and sliced spring onions. Serve hot as an appetizer or with steamed rice as a main course.