Andersson extended it to 3-0 at 2:36 of the second period, scoring a power-play goal on a one-timer off a feed from Toffoli.
Vatrano cut it to 3-1 at 7:36 of the second period on the power play with a wrist shot from the right circle.
"When they get out to a lead like that early on, you can kind of be on your heels a little bit," Vatrano said. "We knew that we needed to do a better job in the second period in our all-around game, and I thought we did that."
Lindholm made it 4-1 after scoring 46 seconds into the third period on the power play. Toffoli fed the puck ahead to Lindholm, and he banked a one-timer from the right circle off the far post and into the net.
"Other than a few spurts in the second period, maybe for about six minutes in the second, we couldn't sustain much," Eakins said. "Every time we turned, they were in our face."
Mangiapane got loose on a breakaway and scored at 15:26 for the 5-1 final, ending a 14-game goal drought.