Preheat oven to 400 degrees and lightly spray or brush a baking rack with cooking oil. Set it over a parchment paper or foil-covered baking sheet.
Add all the meatball ingredients to a large bowl and use your clean hands to mix together until just combined.
Form golf ball-sized balls with the mixture- you should get about 20-24 meatballs. Place on prepared baking rack.
Bake for about 15-18 minutes, until cooked through (they should register about 160 degrees on a thermometer).
While the meatballs are baking, add all the sauce ingredients into a small saucepan over medium heat. Whisk together.
Bring to a simmer for about 3-4 minutes, until sauce is slightly thickened and coats the back of a wooden spoon.
Put cooked meatballs in a bowl and pour sauce over the top. Toss together to coat meatballs.
Serve meatballs over coconut rice with the vegetable sides of your choice. Top with additional sliced scallions and red pepper flakes, if desired.