In the meantime, finely grate the peel of the lemons and then squeeze the lemons. Mix the juice with the olive oil in a large serving bowl, season with salt and plenty of pepper. Clean and wash the rocket, pluck it into small pieces and add it to the lemon sauce.
Grate the parmesan fresh and serve separately.
When the noodles are firm to the bite, drain them, add them to the lemon sauce and mix. Serve immediately and enjoy!