I just got back spending a few weeks in London & Barcelona and I am seriously craving their little gems of food: Moslty:
1. The crispy fila Samosas found everywhere in Ldn from restaurants to cheap liqour stores (which were also hi quality and tasty)
2. Fish & chips with curry seasoning in the fish batter, great idea
3. Sasage & mash (or meat and mash)
4. The simple and inexpensive Bocadillos in Bcn that all consisted of yummy buttery Jamon Iberico on fresh perfect skinny baguttes.
5. The Paellas of course!
So please recommend me to anywhere inside SF city that offer these treats. Preferably inexpensive.