Cook the pasta in boiling salted water for about 8 minutes. In the meantime peel and chop the garlic. Clean, wash and chop the rocket. Puree rocket, garlic, parmesan and oil in a blender. Season to taste with salt and pepper.
Wash, quarter and seed the tomatoes. Cut the flesh into small cubes. Cut ham into strips. Roast pine nuts briefly in a pan without fat. Add tomatoes and ham and mix with pureed rocket.
Serve the tagliatelle and pesto garnished with rocket as desired.