As mentioned, I like to use about a tablespoon of the ground turkey mixture for each meatball. I prefer this smaller size for turkey meatballs as you don't have to cook them as long, so there is less likelihood of them drying out while you wait for the center to cook through. It's also a nice size for kids to eat or to use as party snacks. I like to use a small cookie scoop to get my portions and then gently roll them together.