Xavier Ouellet and Artturi Lehkonen each scored twice as the Canadiens defeated the Maple Leafs 5-1 in NHL pre-season play.
Charles Hudon had the other goal for Montreal, which picked up its fourth victory in five exhibition outings on Monday.
Antti Niemi made 29 stops for the Canadiens, while rookie centre Jesperi Kotkaniemi continued to impress in his bid to make the club with an assist and a plus-3 rating.
Kasperi Kapanen replied for Toronto as the Leafs lost for the first time in five pre-season game.
Both teams dressed lineups at Scotiabank Arena filled heavily with players destined for the American Hockey League this season.