Pre-heat oven to 375 F / 190 C.
Add everything to a large mixing bowl, and mix with clean hands, until well incorporated.
Scoop out about 1 - 2 oz (30 - 60g) depending on how big you want your meatballs. I like to go 1.5 oz (45g) for a Meatball Sub or Spaghetti and Meatballs.
Roll into a ball. If it's too dry to roll into a ball, add a little liquid (unsweetened plant milk works) until it comes together. However, i've found it doesn't need it, and adding unnecessary liquid can result in mushy meatballs.
Roll all your meatballs and add to parchment lined baking tray. Bake for 8 - 12 minutes. The longer you bake, the firmer they will be, but be careful not to dry them out. You can also test bake 1 or 2 first to figure out the right heat level.
Once meatballs are cooked to your liking, enjoy immediately on pasta, or in a sandwich, with some Marinara or just eat them on their own!