Clean and wash the aubergine, peppers and zucchini and cut them into small pieces. Peel and roughly dice the onion. Wash the cutlets, dab dry. Heat oil in a coated pan, fry escalopes briefly in both.
Take it out, season with salt and pepper. Put the vegetables in the pan and fry them in the frying fat. Add tomatoes with juice, chop a little. Season with salt, pepper and herbs of Provence, bring to the boil.
Put the schnitzel and ratatouille sauce in an ovenproof dish. Crumble feta cheese over it. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for approx. 10 minutes. Prepare rice in boiling salted water according to instructions on the packet.
Garnish the schnitzel casserole with oregano. Serve with rice.