Cal Pep – is a MUST. Best for having lunch at the bar. Come early, otherwise long waiting time (but with beer/wine)
http://www.calpep.com
Taller de Tapas (Tapas workshop) – Best if you like to test a lot of small tapas. Good local beer.
http://www.tallerdetapas.com
Escriba – Best pastry. Something for the afternoon coffee. Located Las Ramblas
http://www.escriba.es
Bar Can Paixano – Cheapest Cava and bocadillos in town!!!
http://www.canpaixano.com
Mercat de Sant Josep / La Boqueria Local market. Best for having lunch. Eat fresh fish direct from the sea. Beside Las Ramblas.