Hello! We will be traveling to Spain in October and we're flying into Bilbao Saturday night and spending the next day, Sunday there as well. Ideally, we want a nice sit down restaurant for lunch on Sunday and then pinxtos hopping for dinner that night. We're staying in the Old Town and want to visit the Guggenheim during the day. Do you have an recommendations on restaurants that are open on Sundays in Bilbao for lunch?