To start, cook the prawns in olive oil for two minutes on each side.
Next, sauté the sliced garlic and chili pepper until golden, then set aside.
In the same oil, fry the prawn heads for about two minutes, pressing them down so they release their juices.
Once the heads are cooked, remove them and strain the remaining juices. Add the zest of 1 lemon, 3 sprigs of thyme, and the previously cooked garlic and chili pepper to this broth. Mix everything well and set the sauce aside.
Sear the cherry tomatoes on both sides in olive oil.
Simmer the vegetable broth with the Grana Padano over medium heat until it melts and forms a thick sauce.
Heat some olive oil in a skillet. Add the previously cooked tagliatelle, the prawns, the cherry tomatoes, thyme, and the prawn juice sauce. Cook everything together for about three minutes so the flavors blend well.
Finally, plate the dish and top it with the Grana Padano sauce and some chopped chives. Enjoy!