1Preheat the Air Fryer to 180°C (350°F).
2Wash the leeks and slice them into thin rings.
3In a pan, heat olive oil and sauté the leeks with minced garlic for 3-4 minutes until softened.
4Add spinach and cook until wilted, then season with salt, pepper, and nutmeg.
5In a bowl, mix ricotta with half of the grated parmesan.
6Assemble the lasagna in an Air Fryer-safe dish: start with a layer of leek-spinach mixture, then lasagna sheets, then ricotta mixture, and repeat.
7Top with mozzarella and remaining parmesan.
8Place the dish in the Air Fryer and cook for 15 minutes at 180°C (350°F).
9Check if the lasagna is cooked through; if not, cook for another 5 minutes.
10Let it rest for 2 minutes before serving.