Step 1

Preheat the oven to 400° and have ready two rimmed baking sheets lined with nonstick aluminum foil.

Step 2

In a medium-sized mixing bowl, combine bread crumbs and milk. Stir until crumbs have absorbed the milk. Add the minced onion, garlic, parsley, Parmesan, egg, Kosher salt, and black pepper. Stir once more to thoroughly combine. Add the ground beef and gently mix to combine.

Step 3

With damp hands, roll about 2 tablespoons-worth of the meatball mixture into a ball and place on the baking sheets, placing each meatball at least 1" apart. Lightly spritz the meatballs with cooking oil.

Step 4

Bake for 25-30 minutes, until properly cooked through. Allow to cool slightly, serve and enjoy!