Wash and clean the rocket and dab dry, put something aside for garnishing. Process remaining rocket in the universal chopper with almonds, oil and parmesan to a pesto. Season to taste with salt and pepper. Cook the pasta in boiling salted water according to the instructions on the packet. Drain the olives.
Drain tuna as well and pluck into large pieces. Drain the pasta and let it drain, collecting 2-3 tablespoons of cooking water. Mix pasta immediately with cooking water and pesto. Mix in tuna and olives and serve. Garnish with set aside rocket