Preheat oven to 375°F. Spray a baking sheet with cooking spray and set aside.
In a large bowl, combine all of the meatball ingredients until well mixed. Shape into 1-1½-inch balls. Place the meatballs on the prepared baking sheet and cook for 18-20 minutes or until the meat is no longer pink.
Meanwhile, combine all of the sauce ingredients in a medium or large saucepan and bring to a boil over medium-high heat. Allow the sauce to boil until it thickens slightly - about 3-5 minutes. Remove from heat and set aside.
When the meatballs have finished cooking, stir them into the sauce. Coat well with the sauce.
Serve the meatballs over rice. Sprinkle with green onions and sesame seeds, if desired.
Notes
If you don't eat pork, try ground chicken or turkey instead.