Preheat oven to 400F. Line a half sheet pan with parchment paper and set aside.
In a medium mixing bowl, mix all ingredients until combined. I prefer to use my hands for this step.
Roll meatball mixture into ping pong sized balls, and place onto prepared baking sheet.
Bake for approximately 20 minutes, until internal temperature reads 165 for beef meatballs. If you do smaller or larger meatballs, check time accordingly.
Transfer the cooked meatballs into the marinara sauce AND include the brown bits and some of the grease from the pan into your marinara sauce. It will give it a nice hit of flavor.