Cut the fish fillet into large bite size pieces. Roll in seasoned breadcrumbs until coated.
Spray inside of air fryer basket with non stick spray and lay coated pieces inside without overlapping.
Spray top with olive oil and close drawer. Cook at 375 degrees F for 6-8 minutes (depending on how large your pieces are).
Break one piece apart to see "doneness".
When perfect add into small tortillas with sliced red onion, squeeze of tartar sauce or make our cilantro lime sauce, squeeze of lime and pinch of fresh cilantro.