Clean the mushrooms, unscrew the stalk and wash them. Clean, peel and halve the cucumber. Scrape out the seeds with a teaspoon. Cut the cucumber into small cubes. Peel onion.
Drain the pumpkin and collect the stock. Dice onion and pumpkin as well. Fry onion and cucumber in 1 tablespoon of hot oil. Add cream and 2 tablespoons of pumpkin juice and cook for about 7 minutes.
Wash the dill, dab dry and cut finely. Fry the mushrooms in the remaining oil all around for about 8 minutes. Add pumpkin cubes and dill to the cucumber vegetables. Season to taste with salt and pepper. Bring to the boil again, stir in the sauce thickener.
Fill the mushrooms with the vegetables. Put the rest of the vegetables in a flat dish and place the mushrooms on top. Garnish with dill umbel flowers. Rice tastes good with it.