Remove oil from the canned tuna, then add 1/4 onion, 3 tablespoons of tomato sauce (can substitute ketchup + sriracha), black pepper, and 2 tablespoons of sweet corn.
Spread 1 tablespoon of basil pesto on a tortilla, add a handful of cheese, then fill with the prepared mixture.
Fold both sides and air fry at 200°C (392°F) for 10 minutes, then flip and cook for another 5 minutes.