Preheat oven to 400° and line a large baking sheet with parchment paper.
In a large mixing bowl, combine ground pork, sesame oil, coconut aminos and green onion. Use your hands to mix and form into golfball-sized balls. You can use a small ice cream scoop if you have one. You should make about 18-20 balls.
Place the balls on parchment lined baking sheet and transfer to oven to bake for 20 minutes.
While the meatballs are cooking, add all of the sauce ingredients to a saucepan and whisk well to mix and incorporate the flour.
When the meatballs have about 7 minutes of cooking time left, start heating the sauce.
Whisk the sauce before turning on the heat to the saucepan. Bring the sauce to a quick low boil and then turn heat down to low to simmer. Simmer, stirring frequently, until the sauce thickens, about 4-5 minutes.
Remove meatballs from the oven. Spoon sauce over the meatballs for serving and top with any other desired toppings like sesame seeds or diced scallions.
Notes
If you want, you can broil the meatballs for 5 minutes at the end to brown the tops.