Cut the zucchini into similarly sized spears.
Lay several sheets of paper towel on the counter and lay the zucchini spears on the paper towels.
Sprinkle approximately 1 tablespoon of salt over the cut side of the zucchini and let sit for 20-30 minutes. This will draw some of the moisture out of the zucchini.
In the meantime, combine the breadcrumbs, parmesan cheese, and Italian seasoning in a small food processor bowl and process until the mix is approximately the size of large grains of sand. If you already have fine breadcrumbs and parmesan cheese, you can skip the processing of these ingredients but still combine the three ingredients.
Whip eggs.
Place 3 plates on the counter and add 1/3 of the breadcrumb mixture to one plate, all of the flour to one plate, and the whipped eggs to the third plate.
Using a dry paper towel, dab all the zucchini spears to dry them.
Preheat the air fryer to 400°F (200° C).
Working in batches, dip several zucchini slices in the flour, then the egg, and finally, the breadcrumbs. The breadcrumbs will get gummy after a few rounds, so add some of the reserved, dry breadcrumbs to the plate as needed.
Place the coated zucchini spears on your air fryer basket or sheet which has been sprayed with oil. Space them apart to ensure airflow between the zucchini fries.
Repeat steps 7-9 until all zucchini spears have been coated.
Bake in the preheated air fryer for 8-12 minutes until golden brown.
Serve them warm with the Horseradish Sauce or your preferred sauce.