This recipe adds a creamy twist to the classic Sarde a Beccafico by incorporating spinach and ricotta into the stuffing for the sardines. The spinach adds a fresh and earthy flavor, while the ricotta provides a creamy note. The sardines are stuffed with a mixture of breadcrumbs, spinach, ricotta, pine nuts, raisins, and olive oil. The dish is then baked until the sardines are crispy and the stuffing is golden brown.