3 souvlaki and pizza places we would send a friend to, in Syntagma, Monastiraki and Kerameikos.
A souvlaki counter on Fokionos, two minutes off Monastiraki Square: pork off the spit (gone early most days), handmade meatballs, a fresh aubergine and red pepper dip, and the kitchen's own pitopsomo. The owner works the floor most nights.
A small Lebanese and Levantine kitchen on the corner of Karori and Agathonos, just off Monastiraki's main drag. Fattoush, hummus and the dishes that have stayed on the menu since day one, made the same way, at low prices.