Masa is an upscale Southwestern restaurant in the South End that offers one of the best brunch deals in Boston. It is within walking distance from most of the conference hotels or a short cab/Uber ride.
For $9.95 you can get coffee, tea, or juice, blue and yellow corn bread with 3 different spreads (chipotle cranberry, honey molasses butter, and habanero apricot) along with 2 courses!
For the second course I recommend the Huevos Rancheros or the Santa Fe Style Eggs Benedict.
Santa Fe Style Eggs Benedict
You can make a reservation ahead of time and make sure to remember they only offer this deal Saturdays from 10am-3pm and Sundays from 9am-11am. They also only offer this deal to groups of 6 or less.
Bar where they serve excellent margaritas!