O’Neill used the friendly against the side ranked 80th in the world as a chance to give younger players a chance in the green and white shirt.
Both Liverpool’s Kieran Morrison and Arsenal’s Ceadach O’Neill made their senior debuts during the lacklustre match.
Stopper Luke Southwood also came off the bench at half-time to make just his second appearance, in what was the first ever meeting between the nations.
“That was Tom [Atcheson’s] first start and I thought he played terrific, Ciaron Brown was excellent in the back three and Ruairi McConville,” Northern Ireland boss O’Neill added.
“I thought young Ceadach O’Neill did really well when he came on and showed great strength to stay on the ball, but it was really good to see the togetherness of the group.
“Ethan Galbraith has not played since March and Ali McCann has not played after March and gave us a great shift as well. Right through the squad, they worked really hard to keep a clean sheet and win the game.”
Northern Ireland will now travel to Lille to face France in their final preparation match before the World Cup.
O’Neill added that there will be “no expectation” on his side on Monday (20:10 BST) against the nation who sit top of Fifa’s rankings., external
“They are certainly one of the major favourites for the World Cup,” he added.
“It will be a tough challenge and a different approach from our side, we will be as strong as we can be from the start.
“It is a great game, there is no expectation on us, but we have to give a good account of ourselves as well.”
