For the meatballs: Peel the sweet potato and wash and peel the carrots. Using a shredder attachment on a food processor, shred both. You can also use a grater to shred by hand.
Place shredded veggies with the rest of the meatball ingredients in a large bowl. Use your hands or a potato masher to combine.
Heat a large oven safe saucepan or skillet to medium high heat (an iron skillet is perfect for this!). Place in it 1-2 teaspoons coconut oil or sesame oil. Using an ice cream scoop or large spoon, shape meatballs. You will have 12-15 large meatballs. Brown them on all sides.
While these are cooking, in a medium bowl, blend all sauce ingredients together with a wire whisk, until evenly combined. When meatballs are browned, remove from heat, and pour the sauce over them.
Place the meatballs in sauce, in the saucepan, in the preheated oven for 15-20 minutes, or until cooked through. Garnish with chopped cilantro and green onions.