This variation of Sarde a Beccafico includes a creamy and delicious topping made with ricotta cheese. The sardines are stuffed with the traditional breadcrumb mixture and baked in the oven. Meanwhile, a simple topping is made with ricotta cheese, lemon zest, and olive oil. Once the sardines are cooked, the topping is spooned over them. The combination of the sweet stuffing and the creamy topping makes for a delicious and indulgent dish.