
Prepare the stuffed champignons. Heat the oil in a frying pan. Put the chicken fillet in. Fry it over high heat until golden brown, about 5 minutes. Then add the chopped mushroom stems, stir and continue cooking for another 5 minutes.

Finish preparing the filling. Pour sour cream into the chicken and mushrooms, sprinkle with spices and stir. Reduce heat to low and simmer the filling for 5 minutes. Remove the pan from the heat. Transfer the chicken and mushrooms to a deep container. Cool to room temperature. Combine it with half of the cheese and herbs.

Prepare the mushrooms for baking. Place the mushroom caps in a heat-resistant form. Stuff them with chicken and sprinkle with the remaining cheese. Place in an oven preheated to 190 ˚C for 20 minutes.