Travelling in August, and especially arriving on a Monday, is not great for finding places open. At least half of the recommended pintxo bars on my list were closed for holidays. Perhaps because of this we found the food a bit uninteresting (and very mayonnaisey!).
We fared better at Casa Rufo (below), a restaurant that was recommended by my landlord. Cosy ambiance, great staff, delicious food and wine… AND we got to sit down. 😉