Wash the rocket and shake dry. Mix three tablespoons of oil, balsamic vinegar, salt and pepper into a vinaigrette and set aside.
Scatter 50 g of Grana Padano into a circular pan in a coated pan, melt until golden yellow over medium heat, put over an upturned cup and allow to cool.
Heat the remaining oil in a pan, fry the prawns on both sides, then season with salt and pepper.
Mix the rocket with the vinaigrette and serve with the prawns in the padano basket.