Wash the zucchini and grate coarsely. Squeeze very well so that as little liquid as possible remains.
Beat the eggs with the milk. Mix the crumbled feta with the remaining ingredients.
Pour into the greased baking dish and pour the egg-milk mixture on top.
Bake the casserole in the Philips Airfryer hot air fryer at 180 °C for about 30-35 minutes.