Stutzle waited for an airborne puck to land and one-timed it as soon as it hit the ice to make it 3-2 at 11:44.
"I have more confidence, for sure," Stutzle said when comparing his second NHL game to his first Friday. "I felt better making my plays. I'm kind of a creative player, so I want to have the puck and make plays. I thought today I played with more confidence and it worked out pretty good."
Stutzle led Ottawa with three shots on goal in 14:52 of ice time.
"He's going to be a really good player," Smith said. "You can see his speed. And it's great he gets that [goal]. I think you're going to see more and more of that as the year goes on."
NOTES: Nick Robertson, a forward making his NHL regular-season debut for the Maple Leafs, left the game in the first period with a knee injury. Keefe said Robertson needs an MRI and will "definitely miss some time." ... At 19 years and one day old, Stutzle is the third youngest player in Senators history to score his first goal (Alexandre Daigle, 18 years and 244 days; Pavol Demitra, 18 years and 314 days). ... Forward Colin White (one assist, 11:24 of ice time) and defenseman Mike Reilly (two blocked shots, 17:04 of ice time) each made his season debut for the Senators. ... Thornton has 421 NHL goals with the Maple Leafs, Boston Bruins and San Jose Sharks.