Wash the pumpkin thoroughly and cut into slices of such a size that it is convenient to transfer from the mold and eat too. There is no need to remove the skin, just the inner fibrous edge. Cover a heat-resistant form with parchment, grease with refined vegetable oil, and place pumpkin slices greased with honey. Sprinkle ground cinnamon on top and place in the oven for 35-40 minutes, preheated to 190 degrees. The dessert should be served cold, sprinkled with toasted pumpkin seeds.