Ottawa, ON – Lars Eller's short-handed goal in the first 2, and snap a five-game slide.
The Canadiens scored five consecutive goals, starting with Eller's at 5:08 of the first period and ending with P.K. Subban's 5:53 into the second.
The outburst allowed Montreal to earn its first victory since December 13 against the Islanders. The Habs had scored only nine goals during their recent slide, and were shut out in Winnipeg on Thursday.
Carey Price made 33 saves in the win.
But by then it was too late for the Senators, who dropped their second consecutive game.