Eden Hazard delighted on his first start of the season after his broken ankle, while Conte responded to the Chelsea youth performance v Forest.
Chelsea academy graduates Musonda, Andreas Christensen, Jake Clarke-Salter and Dujon Sterling featured, while Ethan Ampadu became the first Chelsea player born this millennium, a week after his 17th birthday.
Conte suggested he could field a similar squad in the fourth round against Everton.
Conte said: “We are a great club, for this reason every competition is important to us. If we answer like this tonight, why not continue to give the opportunity to these players?”
“Kenedy played very well,” Conte said.
“He’s working very well, he’s working a lot. When there will be the opportunity, a new chance, he must exploit it.”
Meanwhile, Forest boss Mark Warburton was frustrated with his side’s defending.
“You can’t give away soft goals. It’s as simple as that,” Warburton said.
