Preheat oven to 190ºC . Combine all ingredients, except cheese and the 2 green peppers, in a medium bowl until well blended. Make 10 meatballs with a 3 cm cube of Jack cheese in the center of each. Cut peppers into quarters and remove seeds. Place meatballs into the center of each pepper and bake 20-30 minutes. Serves 4-6.