Wash the cucumber, dab dry and cut in half lengthwise. Scrape out the seeds with a teaspoon. Cut the flesh into small cubes. Clean, wash and quarter the tomatoes. Also remove seeds and dice finely.
Peel and chop shallots. Pluck basil leaves from the stems and cut into strips. Mix cucumber, tomatoes, shallots and basil with the olive oil. Season with salt and coloured pepper and let it stand for about 30 minutes. Wash the cutlets and dab dry. Mix cheese, except for something to sprinkle, and breadcrumbs. Whisk the egg. Season schnitzel with salt and pepper. Turn first in the egg, then in the cheese mixture. Fry in hot fat for 3-4 minutes on each side.
Mix cheese, except for something to sprinkle, and breadcrumbs. Whisk the egg. Season schnitzel with salt and pepper. Turn first in the egg, then in the cheese mixture. Fry in hot fat for 3-4 minutes on each side. Arrange 2 cutlets each with some vegetable tartare on a plate. Sprinkle with the remaining Parmesan cheese