Lightly oil the turkey schnitzel, season with salt and pepper. Place in a microwave-safe casserole dish (without a lid). Spread the boiled ham and tomato slices on top. Salt and pepper.
Cook for 5 minutes at 600 watts and grill (medium setting).
Top with basil leaves, then with mozzarella. Sprinkle with salt, pepper, oregano and a little thyme. Spread the grated cheese on top. Bake for another 7 minutes at 600 watts and grill (medium setting). Leave to stand for another 3 minutes in the switched-off device.