La Oficina or La Ofi has been my favorite breakfast and dinner spot here in Tucuman. In the morning…read morethe streets are pretty loud so I retreat inside and enjoy good wifi. At night the outside tables are usually taken but if you can snag one I would recommend the chicken or beef empanada and the sfijas. Watch out for the hot juice explosion when you bite into these though. They are the same empanadas as at the Fabrica across the street, and they are the best. It's pretty informal, I've seen guys in suits hold meetings alongside young couples eating pizza. They stay open during the week from 5:30pm to 1:30am, and during the weekends from 7pm to 2. In the mornings they are open Monday to Saturday from 8am to 3pm.