Nice find for a Sunday night after The Tate!
We found Goya after searching for somewhere open on a Sunday evening within walking distance (which it was).
We ate on the ground floor which has a number of rustic wooden tables; just a tapas selection, but a good lot. I ordered Rinones (Kidneys), which I like but no-one else did, so all the more for me! Sizeable plates of veg pistou, calamares, octopus, gambas and so on, plus very good artichokes cooked with jamon.
Hot, efficient, well-priced, reasonable Spanish wine, and a modest 10% service - what's not to like?