Mix the egg, grated cheese, and dried parsley in a bowl to make the egg batter.
Heat oil in a frying pan over medium heat.
Season the pork tenderloins with salt and pepper.
Dip the tenderloins in the egg mixture and fry in the pan.
Pour the leftover egg mixture on top of the pork and cook for 2-3 minutes on each side.
Serve with ketchup or soy sauce.
