This sandwich proves that mushrooms deserve the starring role. With an oriental spice blend of cumin, paprika, coriander, and cinnamon, sliced mushrooms become an aromatic shawarma substitute. The secret lies in the right technique: pressing a heavy object onto the mushrooms draws out the water, making them "meaty." Then, at high heat, they brown beautifully and acquire a light roasted aroma. Between crusty bread with hummus, tomatoes, and pickled onions, the result is a sandwich reminiscent of oriental street stalls. A 15-minute lunch that turns every midday into a mini vacation in the Middle East.