For this beef meatball recipe, I definitely recommend baking over frying. Pan-searing or frying is an option but better if you are only making a few meatballs. The process can get messy and producing evenly browned meatballs requires all of your attention on the frying pan.  When making large quantities, baking is the way to go. It is faster, easier, and reliably produces evenly cooked, beautifully browned Italian meatballs. Plus, I like having my hands and attention free to finish cooking the rest of the meal.