 Lashoff scored his first NHL goal December 31, 2007, against Kari Lehtonen of the Atlanta Thrashers.On April 4, 2007, Lashoff was named to the 2006–07 AHL All-Rookie Team.On March 4, 2009, at the trade deadline for the 2008–09 season, Lashoff was traded by the Bruins, along with Mārtiņš Karsums, to the Tampa Bay Lightning for Mark Recchi and a 2009 second round draft pick.