This no-frills joint in South Boston has been a fixture for more than 40 years. Craving a doughnut at 3am? You’ll find a wide variety of fresh ones at any hour. Even the drive-thru is 24 hours. Also on the menu in the Deli: pizza, burgers, and gut-busting breakfast sandwiches from 9am to 10pm on weekdays and 9am to 4pm on Saturdays.