Combine all ingredients for meatballs in a large mixing bowl and mix until well combined.
Roll meatballs into balls that are 1 1/4". Place on a sheet pan lined with aluminum foil and bake for 12 minutes or until the meatballs are cooked through.
While the meatballs are cooking, combine the ingredients for the sauce in a small saucepan and cook over medium heat for 5-6 minutes, stirring regularly.
Transfer cooked meatballs to a mixing bowl and pour sauce over. Lightly mix before serving. Top with green onions and sesame seeds.
You can substitute in garlic powder and ground ginger but the flavors will definitely not be as strong. I would use just ¼ teaspoon ground ginger and ⅓ teaspoon garlic powder in both the meatballs and sauce. If you prefer beef meatballs, you can sub beef in for turkey in the recipe.