Preheat air fryer to 400 degrees F. In a large bowl add oil, onion salt, garlic powder and oregano. Slice potatoes in half and add to bowl. Toss to coat potatoes in spice mixture.
Place potatoes in air fryer basket and cook for 10 minutes. Remove basket, shake potatoes and cook for an additional 10-15 minutes until browned and cooked through.
Before serving, season potatoes with pepper and top with grated and parsley. Yum!