Lightly grease a round baking pan with cooking spray. Set aside.
In the prepared baking pan, add tomatoes, mushrooms and garlic.
Drizzle with oil and sprinkle with salt and black pepper.
Slide the Air Fryer Basket inside and adjust the temperature to 390 °F to preheat for 5 minutes.
After preheating, arrange the baking pan into the Air Fryer Basket.
Slide the basket into Air Fryer and set the time for 10 minutes.
Meanwhile ,in a sieve, place the spinach.
Pour boiling water over spinach and drain well.
After cooking time is finished, remove the baking pan from Air Fryer and place the spinach into pan over veggie mixture evenly.
Carefully crack the eggs over the spinach.
Again, slide the Air Fryer Basket inside and adjust the temperature to 320 °F for 8 minutes.
After cooking time is finished, remove the baking pan from Air Fryer and top with feta cheese.
Serve immediately.