A soup made from fresh wild mushrooms:
There is a wonderful range of good edible mushrooms to choose from, including several of the Boletes, most Agaricus mushrooms, all of the Chanterelles, and some of the large Parasol mushrooms.
Shown here is a group of Wood Hedgehog fungi, Hydnum repandum, which are ideal for this dish (and many others):
It is essential to make sure you know how to recognise the poisonous species, though. (Most edible fungi have lookalike Impostors that you will need to avoid.)