For a twist on the traditional Sarde a Beccafico, try making it with a tomato sauce. Start by making the tomato sauce in the robot de cocina by sautéing onions and garlic, then adding canned tomatoes, salt, and pepper. Once the sauce is ready, stuff the sardines with the breadcrumb mixture and place them in the robot de cocina with the tomato sauce. Bake until the sardines are cooked through and the sauce is bubbly and delicious. Serve with crusty bread to soak up all the delicious sauce.