Onions peel, halve and cut into thin slices. Wash the meat, dab dry. Heat the oil in an ovenproof pan. Fry escalopes for 1-2 minutes on each side. Season with pizza spice, salt and pepper.
Sprinkle with onions and remove from heat. Put a slice of ham on each cutlet. Divide the minced meat into 4 portions, form them into longish shapes and place a minced meatball on each cutlet. Pour tomato sauce and cream over the escalopes. Cover and braise in the preheated oven (electric cooker 175 °C/ convection oven: 150 °C/ gas: level 2) for about 1 1/4 hours. Drain mozzarella and cut into cubes. Cover pan and sprinkle schnitzel with cheese. Bake open for another 30 minutes. Serve garnished with rosemary and thyme.
Cover and braise in the preheated oven (electric cooker 175 °C/ convection oven: 150 °C/ gas: level 2) for about 1 1/4 hours. Drain mozzarella and cut into cubes. Cover pan and sprinkle schnitzel with cheese. Bake open for another 30 minutes. Serve garnished with rosemary and thyme. Serve with a fresh salad and bread