Cook the pasta in boiling salted water for about 10 minutes. Then drain. In the meantime wash the basil. Puree olives, basil, parmesan and oil in a blender. Season with salt, pepper and vinegar. Clean and wash lamb's lettuce.
Wash and slice the tomatoes. Cut sheep's cheese into cubes. Mix pasta, pesto, lamb's lettuce, tomatoes, sheep's cheese and black olives. Cover and leave to stand for about 30 minutes. Season again and serve garnished with lemon wheels and basil leaves