01 - Preheat oven to 400°F and line a baking sheet with parchment paper.
02 - In a large bowl, gently mix ground beef, egg, breadcrumbs, garlic, ginger, Sriracha, soy sauce, sesame oil, spring onions, salt, and black pepper until just combined.
03 - Shape the mixture into 20 evenly sized meatballs and place them on the prepared baking sheet.
04 - Bake for 15 to 18 minutes until cooked through and browned.
05 - While baking, whisk Sriracha, honey, soy sauce, rice vinegar, and sesame oil in a small saucepan over medium heat; simmer for 2 to 3 minutes until slightly thickened.
06 - Transfer hot meatballs to a bowl and toss gently with the warm glaze to coat evenly.
07 - Serve immediately, optionally garnished with sesame seeds and sliced spring onions.