Unit 7 Castle House, South Great George’s Street, Dublin 2
The food: Modern Mexican
John Farrell’s modern Mexican 777 opened in 2012 and is still as heaving as ever, thanks to innovative, ever-changing small plates and excellent margaritas. Sunday is the best day to visit, when all dishes are €7.77, or there’s Taco Tuesdays (two tacos for €6) and Margarita Mondays (two margaritas for €14). Open seven days and walk in only.