Mix the ground beef, breadcrumbs, milk, egg, spices, salt, pepper, and Parmesan well.
Make Meatballs from the meat mixture into medium-sized balls. Set aside or place in the fridge for 10 minutes.
Preheat the Air Fryer to 400 degrees
Place Meatballs in Air Fryer making sure they do not touch each other. Spray with olive oil and Cook at 400 degrees for 8-10 Minutes.
Serve with Marinara Sauce or use for Sub Sandwiches or Sliders.
Makes About 12 Golf Ball Sized Meatballs