Peel, wash and roughly dice the potatoes. Cook in salted water for about 20 minutes
Clean and wash vegetables and mushrooms. Cut carrots into fine cubes, leek into fine rings and mushrooms into slices. Peel and finely dice onion and garlic
Fry the vegetables, mushrooms, onion and garlic in hot oil in portions if necessary. Season with salt, pepper and thyme. Stir in tomato paste and sweat it. Deglaze with 3/8 l water and wine (or only 1/2 l water). Bring to the boil, stir in broth and braise covered for about 10 minutes. Bind and season to taste with salt and pepper
Drain and mash the potatoes and add the milk. Season the mashed potatoes with salt and nutmeg
Put the puree into a greased casserole dish, in the middle
press a depression. Pour in vegetable sauce. Spread the sour cream as a blob and crumble the cheese over it. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/gas: level 3) for 25-30 minutes
VALUABLE PROTEIN
Combine more often pulses with cereals, potatoes with egg or milk, cereals with milk or nuts. This way their protein components complement each other optimally - the body can make better use of the protein