Peel and finely dice the onions and garlic. Heat 1 tablespoon of oil. Sauté one onion and garlic in it, add noodles. Douse with white wine, season with salt and pepper. Add stock, bring to the boil and cook for 12-15 minutes.
Stir now and then. In the meantime, wash the sage and pluck the leaves from the stems. Sort the mushrooms. Heat 1 tablespoon of oil in another pan. Fry the remaining onion cubes, sage leaves and mushrooms for about 5 minutes.
Season with salt and pepper. Refine noodles with cream. Mix with the mushroom pan.