Overdone vegetables or potatoes can easily be transformed into a delicious puree while they are still hot. Mash the potatoes with a little milk, nutmeg and butter until creamy. Puree the vegetables and mix with crème fraîche or single cream, or add them to stock to make a delicious soup. Overcooked vegetables can also be pureed with oatmeal or potato flakes, seasoned with cream, spices and (herb) butter.