I'm heading to Barcelona for a week in early March, staying near the Sant Antoni Market. Am curious if there are good breakfast (light -- coffee, croissant, etc.) and dinner options in the vicinity. It's hard for me to get a sense of the scale of Barcelona, having never been before, and I wouldn't mind finding a few restaurants within a shortish (15-20 minute max) walk from the Hotel Market. Many thanks in advance for the guidance.