Though not listed on the printed menu, El Viejon Seafood prepares guacamole to order using exceptionally fresh ingredients as their distinguishing factor. The kitchen's approach emphasizes ingredient quality and freshness, with each batch made fresh rather than prepared in advance. The restaurant operates two locations on Convoy Street and in Mira Mesa, making it accessible across San Diego. Diners seeking this off-menu item report it as a worthwhile addition to their seafood order.