Preheat the oven to 220 °C.
Tear or slice the oyster mushrooms into fine strips. Mix in a bowl with the gyros spices and olive oil. Spread them out nicely on a baking sheet. Bake in the oven at 220 degrees for about 20 minutes. Stir the mushrooms halfway through the baking time to ensure they bake evenly and become crispy.
Slice the cucumber and radishes into thin slices and the tomato into cubes and set everything on the table.
For the garlic sauce, put all the ingredients in a bowl and mix everything well together. Add harissa or sambal if you want it to be a bit spicier. Set it on the table.
Toast the pita bread in a toaster and cut them open. Place the breads in a basket.
How to fill? Generously spread the inside with garlic sauce. Fill with cucumber, tomato, radishes, white cabbage, and the mushroom gyros.
Tips
You can also run everything in a durum or simply eat as a salad.