Campo de Ourique Market Is Open since 1934, and was remodeled in 1991 and again in 2013, and continues to offer the fresh fish and vegetables of the day. It also has several shops facing the exterior, and the latest renovation added a food hall with tables for the consumption of much of what is sold.
It's open daily until late at night, so it's more than a shopping destination, it's also a place for meals throughout the day.