Heat grill to 400°F.
Place pork tenderloin on a sheet pan.
Mix salt and oregano in a small bowl.
Rub avocado or grapeseed oil onto pork tenderloin, followed by the oregano salt mixture.
Grill pork tenderloin for about 18 minutes, flipping it halfway through the cooking time. Remove the pork from the grill when it reaches an internal temperature of 145°F, as measured by a meat thermometer.
Serve with a lemony, garlicky hummus, or tomato jam for some real pizza vibes.