For a group of 20 people, you will need approximately 120 meatballs. This may seem like a lot, but keep in mind that your guests will likely want seconds (and maybe even thirds!).u003cbr/u003eu003cbr/u003eTo make sure everyone gets their fair share, it is best to make at least 50% more than you think you will need. So, for a group of 20 people, aim for at least 150 meatballs. This way, even if some guests go back for seconds (or thirds!), there will still be plenty to go aroundu003cstrongu003e.u003c/strongu003e