Set in a medieval house in the old Judería (Jewish quarter), O Birrán cooks up some very tasty plates from classic Galician ingredients – good choices include the pulpo con tetilla (octopus with cheese) and the tortilla abierta (omelette with greens, cheese, bacon and wild mushrooms).
Service is friendly and you can opt for a perch in the bar or a table in the little dining room with its immensely thick stone walls.