German World Cup winner Ozil set up Olivier Giroud's first goal and scored the second in Arsenal's 5-0 win over Aston Villa on Sunday.
The result saw the north London side climb to 5th position in the Premier League table and the Gunners boss was delighted with Ozil's display and his team's performance.
“You cannot fault anybody’s performance, and Mesut did well,” said Arsene Wenger.
“He got back to competition and it takes you a while to get back to that sharpness and that competitive edge, but he is getting there.
“We had a rigorous attitude defensively. Despite being 3-0 up or 4-0 up you didn’t see anybody reluctant to come back and help out. That is important.
“You could see that mentally for Aston Villa the second goal was a big blow to them and from then on it became easier. They are in a difficult position and certainly they saw at 2-0 it would be difficult for them to come back.
“Overall we needed to be a bit patient because Aston Villa tried to stop us going forward by blocking us very early. You could see with time going on we had the chance to go forward and play through their lines. That made the difference.
“We were more direct because they blocked us very high, but when we passed through we always looked dangerous.”