The Dons boss admitted that the victory was comfortable, but conceded that his team's finishing could have been better.
"It was very comfortable," McInnes told BBC Sport. "A good night's work.
"When we miss the penalty early on there might be a bit of doubt, with the players thinking it's going to be one of those nights - and we did pass up a few opportunities.
"But to get that control of the game we had to work hard and I thought we had a good attitude and a good tempo. Some of our shooting could have been better but considering where we are in the season, there was still some real good play."