Fry the schnitzel briefly, season with salt and pepper and place in a baking dish.
Dice the bacon and leave it in a pan. Dice the onion and sauté in the bacon fat until translucent. Clean the mushrooms, cut into slices and cook for a few minutes. Then pour the vegetable mixture onto the schnitzel.
Prepare a roux from fat, flour and broth. Remove from heat, stir in cream cheese and sour cream. If necessary, add some seasoning to the sauce and then pour it over the meat.
Cook in the preheated oven for approx. 45 minutes at 175 ° C.