Using a food processor, you can create a delicious pesto crust for your air fryer salmon. Blend together ingredients like fresh basil, pine nuts, Parmesan cheese, garlic, and olive oil to make the pesto. Coat the salmon fillets with the pesto crust and let them sit for a while. Then, place the salmon in the air fryer and cook until the crust becomes crispy and golden. Serve it with a side of roasted vegetables or a fresh tomato salad for a burst of flavors.