Preheat the oven to 180ºC, hot air. Arrange the chicory halves neatly in a circle in the cake pan. Add a few knobs of butter and sprinkle with the chopped sage. Place the cheese slices on top. Roll out the dough into a round slice that is slightly larger than the pie pan. Place the dough slice on top of the chicory and cheese with the edges pressed down. Place in the oven and bake for another half an hour to 40 minutes, until the dough is nicely browned. Remove the mold from the oven and let it cool for a while. Then turn the mold between two plates, let the excess moisture drain. Serve hot.