Create a simple yet flavorful lemon pepper seasoning for your air fryer salmon using a food processor. Blend together lemon zest, black pepper, garlic powder, and a touch of salt. Coat the salmon fillets with this zesty mixture and let them marinate for a while. Then, place the marinated salmon in the air fryer and cook until it is perfectly cooked and has a burst of citrusy and peppery flavors. Serve the salmon with a side of roasted asparagus or a fresh green salad for a light and refreshing meal.