Wash the tomatoes. Grate cheese finely. Wash thyme, shake dry, pluck leaves from the stalks except for something to garnish. Whisk curd, egg, thyme and cheese together. Season with salt and pepper
Wash the potatoes very thoroughly and cut them into slices with a coloured knife. Spread the potatoes and tomatoes in a slightly oiled dish. Spread the glaze over them
Cook in the preheated oven (electric cooker: 200 °C/ circulating air: 175 °C/ gas: see manufacturer) for approx. 45 minutes. Garnish with thyme