Preheat your oven to 350.
Add all the meatball ingredients into a bowl and mix with your hands until combined.
Measure out your meatballs (I use a cookie scoop) and then roll each meatball into a ball with your hands until smooth.
Set your meatballs aside as you roll them. Once they are all formed, heat a large skillet over medium high heat with a high heat oil.
When hot, sear your meatballs in batches on both sides and then place on a parchment paper lined baking sheet.
Bake for 10 minutes at 350 degrees.
Meanwhile, add all your sauce ingredients except the arrowroot powder to a mason jar or bowl and shake/whisk to combine.
Turn the same pan you cooked your meatballs in to medium heat and add your sauce.
Bring to a simmer and let cook for 3-5 minutes until the garlic and ginger have softened.
In a small bowl, make a slurry with the arrowroot powder + a bit of water and add to your sauce.
Cook until thickened to your desired consistency and then set aside.
When your meatballs come out of the oven, add them to the sauce and stir until the meatballs are all coated in the sauce.
Top with sesame seeds and sliced green onions and serve over rice!