Add all of the ingredients to a mixing bowl and mix until combined.
Using a 3-tablespoon cookie scoop create the meatballs and place them onto a baking sheet lined with parchment paper. Place in the fridge for 30-60 minutes to set. Refrigerating the meatballs will help them keep their shape, this step is optional but recommended.
Preheat the oven to 400F. Place the baking sheet on the middle rack in the oven and bake for 16-18 minutes or until a thermometer reads 165F. Place the oven on broil for a few minutes until golden brown, if desired.
Lean ground chicken, such as 98%, is perfect for these meatballs. If you prefer ground turkey, feel free to substitute.
You can use panko, regular, Italian-seasoned, whole wheat, or gluten-free breadcrumbs here. The breadcrumbs and egg both act as binders, don't skip them!