In a large bowl, combine the meatball ingredients. Season with salt and pepper.Line two large baking sheets with foil and lightly coat with non-stick cooking spray. Form 1 to 1½ inch meatballs and place on the lined baking sheet in a single layer.Broil the meatballs on high for 6-7 minutes, flipping halfway through, or just until browned. **You want the meatballs ONLY browned on top and not cooked through***Combine all the sauce ingredients, except for the green onion and sesame seeds.Place the meatballs in a crockpot, coating with sauce evenly.Cook the meatballs on low for 3 hours. Mixing couple times to evenly coat with sauce.Transfer the meatballs to a serving platter and sprinkle with green onion and sesame seeds.