Put the prepared meat and all the other ingredients into the bowl and mix it with your hands. Form the meatballs in 1 inch shaped balls. Place the meatballs on the pan covered with baking paper and bake them in the oven at 400 F degrees for 20 minutes. In the meanwhile prepare the Teriyaki sauce. Take the sauce pan with all the ingredients for the sauce listed above and whisk on the medium heat until the sauce thickens. Baked meatballs dip into the sauce and serve with cooked rice and steamed broccoli.