Time Out says
On weekends, the crab-cake sandwiches at this counter-service-only restaurant vie with outdoor craft vendors as Eastern Market’s main draw. But Market Lunch is perhaps best visited on weekdays: the line is shorter then and you’re more likely to get a seat at the communal table in the center aisle of the historic food hall. It’s also a popular spot for breakfast, with locals waiting in line for the famous "blue bucks" (blueberry buckwheat pancakes).
225 7th Street
|Cross street:||between Pennsylvania & North Carolina Avenues|
|Transport:||Eastern Market Metro|
|Price:||Main courses $3-$5|
|Opening hours:||7.30am-2.30pm Tue-Fri; 8am-3pm Sat; 11am-3pm Sun|