 That summer, Stewart was drafted 18th overall in the first round of the 2006 NHL Entry Draft by the Colorado Avalanche.On October 13, 2006, the Frontenacs revealed Stewart as the new captain of the team for the 2006–07 season at the Kingston Memorial Centre before a game against the Guelph Storm.Stewart had another solid season with Kingston, as he had 36 goals and 82 points in 61 games, finishing second in team scoring once again.