Desperate in Rome? No money?
Hungry? With no money?
Close to main station Termini, close to Opera as well, you can eat traditiona pork meat (porchetta) by Franco. Small room, just two table, each guest is close to the other, small prices (3,80 euro for a glass of wine and pork sandwich), you will enjoy it, if you like Rome and romans.
Worth a visit on site and on line here