Grease chicken fillets with salt and fry in onion and mushrooms. Set a pan with oil aside. Place chicken in a baking pot. Add flour in a pan and fry until golden, pour in sour cream and bring to a boil. Pour the sauce over chicken, add chopped dill.
Make dough and roll out a round to cover the pot. Cover the pot tightly and bake in the oven for 30 minutes at the average heat. Serve in pots with rice for garnish.