Preheat oven to 375℉.
In a large bowl combine ground beef, egg, milk, panko bread crumbs, garlic, granulated garlic, fresh parsley, sea salt flakes, pepper, and dried oregano.
Once all the ingredients are well distributed add in the feta (I like adding this last to keep the crumbles from getting too blended so they are still somewhat chunky).
Roll out evenly sized portions of the meat mixture and place them in a glass baking dish or cast iron pan.
In a separate bowl, combine lemon juice, oregano, and garlic with melted butter. Stir and pour over the top of the meatballs. Brush or roll the meatballs in the butter sauce so that they are fully coated.
Bake for 30 minutes then switch to broil on high for 2-3 minutes to nicely brown the tops.
Serve with pita, MORE feta, tzatziki and rice.