Goals from Samir Nasri, under fire Gunners captain William Gallas and two late efforts from Theo Walcott and Nicklas Bendtner put the seal on Arsenal's 6-0 aggregate victory.
Arsenal boss Arsene Wenger wanted a response from his team after the disappointing performance in the 1-0 defeat at Fulham at the weekend.
"It was a big game for us and the response was clear. There was togetherness and focus. That is what we wanted after a result like Saturday when we lost at Fulham.
"We needed to be organised because they play a little with your patience. We were disciplined and focused and we were never really under threat.
"I felt the whole team was sharp. Physically we were much better than Saturday."