Fry the mushrooms in a large dry pan, stirring, until the liquid evaporates. Then add a large piece of oil, garlic, leek and fry, stirring, until appetizing color. Spray the flour over the pan and continue to fry for another minute.
Mix in thyme, cream cheese and sour cream and allow to extinguish for a while.
Then combine it all with pasta, green peas and half cheese. Salt and pepper to taste.