Preheat oven to 400°F and line a baking sheet with parchment paper.
In a large mixing bowl, combine pork, eggs, breadcrumbs, green onions, garlic, ginger, salt, and pepper. Mix until just combined.
Shape mixture into small meatballs and place them evenly spaced on the baking sheet.
Bake for 10-12 minutes until cooked through.
Meanwhile, whisk together hoisin sauce, rice vinegar, soy sauce, sesame oil, and chili paste in a saucepan. Simmer for 5 minutes.
Toss baked meatballs in the sauce until coated.
Sprinkle with sesame seeds and extra green onions before serving.