Pre-heat the oven to 350° and spray your cookie sheet/baking pan with cooking spray.
In a mixing bowl, mix together the lean ground beef and eggs.
Mince or chop the onion, and stir it into your beef mixture.
Mince the already steamed cauliflower into cauliflower rice (you can also use a food processor or blender to do this).
Add the cauliflower rice and parmesan cheese to the meat mixture.
Next mix in all of your herbs and seasonings, including the oregano, basil, fresh minced parsley, sea salt, and ground black pepper.
At this point, you can keep stirring with a large fork; or get your hands into the mixture and mix it all together really well.
Take small amounts of the meat mixture and roll into meatballs, about 1 to 2 inches in diameter. You can also use a scoop for this.
Place all the meatballs on your cookie sheet.
Bake at 350° for about 35 minutes or until they're entirely cooked through and up to temperature.
Serve with spaghetti, as an appetizer, etc.