DENVER -- Chris Stewart completed his first NHL hat trick with a penalty shot, and Milan Hejduk scored twice in his return from a seven-week injury layoff to help the Colorado Avalanche beat the St. Louis Blues 7-3 on Saturday night.

Craig Anderson made 39 saves in his team-record 20th consecutive start for Colorado. The Avalanche beat St. Louis for the third time in three meetings this season, snapping the Blues' season-high five-game winning streak.

Stewart, who boosted his season total to 24 goals, had crossed the blue line on a breakaway when beaten Blues defenseman Erik Johnson tripped him in a desperate attempt to stop him, leading to the penalty shot. Stewart slowly skated down the middle and put a shot into the upper right corner above Ty Conklin's glove hand with 57 seconds remaining in the second period.

St. Louis goalie Chris Mason, who was in the net for each of the Blues' wins during their five-game run, was pulled in favor of Conklin early in the second period after giving up four goals on 15 shots.

The Blues struck first, getting a goal from David Perron at 8:35 of the first.

But in a matter of 11 seconds, the game turned.

That's how long it took for the Avs to tie it up on Hejduk's first goal, the catalyst in a string of five straight goals by the Avalanche.

Just 1:12 later, Colorado took the lead on Stewart's first goal. Stewart and Hejduk then scored 1:18 apart in the second to make it 4-1. T.J. Galiardi gave the Avs a 5-1 advantage with a backhander at 10:07.