During a match against the Vancouver Whitecaps David Ferreira came down with an injury and much of his scoring role was passed onto Shea. Coach Schellas Hyndman soon started playing Shea midfield, and he blossomed into a top player of the 2011 MLS season. Shea was named to the MLS Team of Week 11, 14, and 16 in the 2011 MLS season for his performances against Seattle Sounders, Houston Dynamo, Chivas USA, and Columbus Crew. Following Ferreira's injury he led FC Dallas to 10 wins (the first team in the 2011 MLS season to do so) led the club in goals, and as a result he was named to the MLS All-Star Game as a midfielder. As part of the events surrounding the All-Star Game, Shea and New York Red Bulls defender Tim Ream rang the closing bell at the New York Stock Exchange on July 22. However, Shea was unable to play in the game due to a CONCACAF Champions League match. During a match against Sporting Kansas City Brek Shea helped Dallas rally back from 2–0 down to win 3–2, with two crosses in the final two minutes, to Maicon Santos and Bobby Warshaw respectively. Following the end of the 2011 MLS campaign, where Shea was an MVP nominee. On November 10, 2011, it was announced that Shea would spend a month of his offseason training under manager Arsène Wenger at Arsenal.
Under new United States national team head coach Jürgen Klinsmann, Shea was named as one of seven midfielders for a friendly match against Mexico on August 10, 2011 in Philadelphia. In the 60th minute, Shea came on as a substitute for Jermaine Jones and recorded his first international assist on the equalizing goal from Robbie Rogers.
During Shea's personal time he often paints. In 2011, ten of his abstract paintings raised nearly $10,000 at auction in Plano, Texas, in aid of the FC Dallas Foundation's support program for disadvantaged young people.