Solomillo a la Brasa, or grilled beef tenderloin, is a popular meat dish in San Sebastian. The beef tenderloin is marinated with herbs and spices, then grilled to perfection over an open flame. The meat is tender and juicy, with a smoky and charred flavor. Solomillo a la Brasa is often served with a side of roasted vegetables or a creamy potato gratin. It is a classic dish that showcases the quality of Basque beef.