The Premier League champions beat Norwich City 4-0 to book their place in Round 5 of the competition.
The Danish shot stopper, who made just 10 Premier League appearances last season, said he enjoyed his rare time on the Old Trafford pitch, despite having little to do.
“Norwich didn’t have too many attempts on target so I wasn’t very busy,” Lindegaard told the club’s official website.
“I think we controlled the match from the first whistle to the final whistle. We played a good game and we’re pleased we’re through to the next round. I don’t feel any different about this competition to how I feel about the Premier League or the Champions League.
“The approach is the same. It’s the United way to try to win all the competitions we participate in and every game we play in.”
The Dane took advantage of his good viewing position to watch teammate Adnan Januzaj, and the ‘keeper was quick to praise the United youngster.
“I think it’s lovely to see how great Adnan is doing,” he added.
“He gives hope to the whole United spirit, a young lad coming through from the academy into the first team. He’s doing absolutely fantastic. You see what an impact he’s had, not just tonight but on other nights as well.”
Lindegaard will move back to the bench on the weekend, as United travel to Craven Cottage to play Fulham.