1. Prepare the Oven and Baking Sheet:

1. Preheat oven to 400°F (200°C).
2. Line a baking sheet with parchment paper.

2. Make the Meatball Mixture:

1. In a large mixing bowl, combine the ground meat, breadcrumbs, green onions, minced garlic, egg, grated ginger, salt, and pepper.
2. Use your hands or a large spoon to mix the ingredients until just combined. Do not overmix, as this can make the meatballs tough.

3. Form the Meatballs:

1. Roll the mixture into small meatballs, about 1 inch in diameter. You should get approximately 20-24 meatballs.
2. Place the meatballs on the prepared baking sheet, leaving a little space between each meatball.

4. Bake the Meatballs:

1. Bake for 20-25 minutes, or until the meatballs are cooked through and no longer pink in the center. The internal temperature should reach 160°F (71°C) for beef or 165°F (74°C) for turkey.

5. Make the Glaze:

1. While the meatballs are baking, prepare the glaze.
2. In a small saucepan, combine the soy sauce, brown sugar, and sesame oil.
3. Heat over medium heat, whisking constantly, until the sugar is completely dissolved and the glaze begins to simmer.
4. Remove from heat.

6. Glaze the Meatballs:

1. Once the meatballs are cooked, remove them from the oven.
2. Transfer the meatballs to a large bowl or directly into the saucepan with the glaze.
3. Toss gently to coat the meatballs evenly with the glaze.

7. Garnish and Serve:

1. Sprinkle the glazed meatballs with sesame seeds.
2. Serve immediately.