Pour plenty of oil into a large pan or Teflon-coated saucepan. Pour meat and turn on the stove. In the meantime, cut the mushrooms (do not wash) into slices and add them to the pan at the same time. Possibly turn up the stove. Meanwhile, wash the zucchini and cut into half slices with the skin. Also add to the pan. Wash and core the peppers, cut into strips and add. Now mix everything and let fry for about 2 minutes. Stir in brunch and spices, simmer for another 2-3 minutes. Stir in the parmesan, let it melt briefly, season to taste and serve.