Wash meat thoroughly and pat dry with kitchen paper. Clean, wash and slice the zucchini. Peel and slice the onions. Heat 2 tablespoons of oil in a frying pan and fry the meat in it over medium heat on each side for about 7 minutes, turning it over.
At the end of the frying time, dust the meat on each side with paprika and season with salt and pepper. In the meantime, heat the remaining oil in a casserole dish and fry the onions and courgettes for about 10 minutes, turning them over.
Season with salt and pepper. Bake the baguette in a preheated oven (electric cooker: 200 °C/ gas: level 3) for about 8 minutes. Clean, wash, quarter, seed and finely dice the tomatoes. Cut chicken fillet into slices, dust with paprika.
Arrange vegetables and meat on 4 plates. Sprinkle vegetables with pepper and tomato cubes. Serve garnished with parsley if desired. Serve with baguette extra.