Peel the carrots, cut them in half lengthwise and cut them into longish pieces. Clean, wash and cut the leek into large pieces. Blanch vegetables in boiling salted water for about 5 minutes, rinse with cold water and drain. Whisk cream and eggs. Season with salt and pepper. Grate cheese. Roll out the fresh bread roll dough and roll out to a square (approx. 32x32 cm).
Put it into a greased pie or tart tin. Cut off protruding edge, prick dough several times with a fork. Sprinkle with hazelnuts, spread vegetables on top. Pour on egg milk. Sprinkle with cheese and sunflower seeds and bake in a preheated oven (electric: 200 °C/ gas: level 3) for approx. 45 minutes. Garnish as desired with a bouquet of herbs. Results in approx. 8 pieces