Halve the schnitzel, season with salt and pepper and place in a baking dish. Drain the mushrooms together with the peach halves and cover the schnitzel with them.
Prepare the cream sauce according to the instructions on the packet, refine it with the sour cream, season with salt, pepper and soy sauce and pour over it.
Bake the casserole in the oven at 200 ° C (convection 175 ° C) on the middle rack for about 40 minutes. Cook the pasta in salted water according to the instructions on the package.