1.
Slice the meat into fillets and beat each slice with the meat beater. Sprinkle with salt and pepper.
2.
Heat the oil and fry lightly the fillets on one side, the turn them on the other side. Spread one spoon of sour cream, a teaspoon of mustard sauce and a few drops of ketchup on each fillet. Cover and let them fry until the other side is done.
3.
Finally, put the fillets on a plate and serve with cheese and bread.