Cut flat breads in half horizontally and place them on a baking tray lined with baking paper with the cut surfaces facing upwards. Spread with aiwar.
Wash the tomatoes, grate them dry, clean and slice them. Peel onion and cut into fine rings. Wash the thyme, shake dry and pluck the leaves. Crumble the feta cheese.
Cover flatbread with tomato slices and onion rings. Spread olives, feta cheese and thyme on top. Drizzle with olive oil.
Bake in the preheated oven (electric cooker: 225 °C/ convection oven: 200 °C/ gas: see manufacturer) for 20-25 minutes.