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Description: Asador Gaztelu is in the capital's financial district. This large restaurant offers traditional Basque cuisine, sourcing its Cantabrian fish from the port of Ondarroa, ensuring that its ingredients are as fresh as possible. Gaztelu is the perfect place to try dishes such as hake cheeks or bonito with onions, although diners can also choose from various cuts of roast red meats. The long wine list has something to suit all tastes.