Pisto is a traditional Spanish vegetable stew that is popular in the region of Castilla-La Mancha, but you can also find it in Gran Vía. It is made with a medley of sautéed vegetables such as tomatoes, peppers, zucchini, and onions, and it is often served with a fried egg on top. Pisto is a comforting and flavorful dish that showcases the freshness and quality of the ingredients.