Finely chop the peeled onions, the carrots can be cut into strips or grated on a coarse grater. Fry, add mushrooms, add pepper and tomatoes. Salt and pepper. You cut the food foil into rectangles and put the chopped on them, and two tablespoons of vegetables with mushrooms on top. Pour the entire composition with a teaspoon of sour cream and sprinkle with grated cheese. Gently wrap everything and lay everything in the form or on the baking sheet.
Send everything to the oven for 10 minutes. While everything is baking, you can prepare a side dish of boiled potatoes or pasta