Cook the potatoes with their skin on and then peel them. Wash the pumpkin, cut into cubes and steam for 10-15 minutes.
Press or mash the potatoes and the pumpkin through a press, knead with the egg yolks and the flour to form a dough, season with salt and pepper and leave to steep for a moment.
Put on a saucepan with water.
Now cut the onion and mushrooms into small pieces. Put oil in a hot pan and sauté the onion rings briefly. After 2 - 3 minutes add the mushrooms, stir in the sour cream and season with salt and pepper. Just before serving, fold in the rocket / lamb`s lettuce or serve separately with the mushrooms.
Knead the dough (if necessary add a little more flour), shape into a roll and cut off pieces 1 - 2 cm long with a fork. Put the gnocchi in the boiling water.
When they float to the surface (about 5 minutes) they are ready and can be served with the mushrooms.
Tips: Instead of flour, you can also use durum wheat semolina and potato starch (about 100 g / 50 g).
The gnocchi also taste great with sage butter or pesto or in a vegetable pan.