The Magpies climbed back to the top of the second tier on Monday night with a 2-0 win over Aston Villa, courtesy of a sweeping Yoan Gouffran finish shortly before the interval and a Henri Lansbury own goal on the hour.
Skipper Lascelles was "very pleased" to pick up three more points in Newcastle's attempt to secure a top-flight return at the first attempt, even if his side did look lethargic at times at St James' Park.
"We are getting results," he told Sky Sports News. "We just have to prepare every game the same and keep working hard. We are very pleased with the three points. We rest up and go again."