Gently sauté the chopped shallot in a pan with a little extra virgin olive oil, then add the cubed courgettes and cook over medium heat for about ten minutes.
Cook the pasta in plenty of salted water, drain and add it to the pan with the courgettes, spooning in a ladleful of the pasta cooking water.
Add the ricotta and sauté over medium heat for a few minutes, then season with salt and pepper.
Add the grated Grana Padano, mix well and serve the pasta garnished with mint leaves and shavings of Grana Padano.