Put the rice in plenty of boiling salted water, cover and let it swell at low heat for about 20 minutes. Wash the meat, dab slightly dry and season with salt and pepper. Sprinkle with Parmesan cheese all around and press on.
Heat oil in a pan and fry the escalope in it at medium heat for 2-3 minutes on each side. Remove from the pan and keep warm. In the meantime peel onion and cut into rings. Wash, clean and quarter the tomatoes.
Sauté the onion in the frying fat. Add the tomatoes, steam briefly, deglaze with broth and braise over a low heat for about 3 minutes. Arrange rice, schnitzel and tomato vegetables on a plate. Sprinkle with lemon pepper and serve garnished with parsley as desired.