The 31-year-old re-signed for the Canaries earlier this week after spending two years away from the club with spells at Burnley and Luton.
He told the club's official website: "I'm delighted, absolutely delighted. When I first came here it was purely to train for the first two weeks, and now that I've actually signed, I'm really pleased.
"It doesn't feel like I've ever been away but it's good to actually be back again. Everything for myself, personally, has fallen into place. It has been a really tough few weeks.
"Hopefully I can bring good skill, a kind of quality and hopefully bring goals to the team as well. I that that's what I've done in pre-season and the manager has seen that, so hopefully I can carry on."