Toss together pasta, oil, Italian seasoning, salt, pepper, and 1/4 cup of the Parmesan in a medium bowl until evenly coated. Place in air fryer basket in an even layer.
Cook in the air fryer at 400 degrees F (200 degrees C), shaking basket halfway through, until golden and crispy, about 14 minutes.
Meanwhile, whisk together dressing and mayonnaise in a large bowl until combined. Add salami, bell peppers, onion, olives, mozzarella, and remaining 1/2 cup Parmesan cheese; tossing until evenly coated.
Add crispy pasta and spinach to vegetable mixture and toss to coat. Serve immediately garnished with additional pepper. Recipe developed by Melissa Gray-Streett