Add in the ground beef, then sprinkle the salt, coriander, cumin, ginger, black pepper, and cayenne on top; mix thoroughly with your hands.
Form mixture into 18 meatballs, using a tablespoon sized cookie scoop.
Thread meatballs onto metal skewers and transfer to a baking sheet; flatten meatballs slightly. Cover with plastic wrap and refrigerate for at least 2 hours and up to overnight.
Preheat an outdoor grill to medium-high; oil grates well.
Place skewers on the grates, close lid, and cook for about 4 minutes per side until meat is cooked through (160 degrees F in the thickest part.)
Serve meatballs on Naan with some Tzatziki sauce and fresh chopped parsley.