This variation of Sarde a Beccafico includes a topping made with fresh basil and tomatoes. The sardines are stuffed with the traditional breadcrumb mixture and baked in the oven. Meanwhile, a simple topping is made with chopped tomatoes, fresh basil, and olive oil. Once the sardines are cooked, the topping is spooned over them. The combination of the sweet stuffing and the fresh topping makes for a delicious and summery dish.