The Portuguese international's late penalty secured all three points after a brilliant first half effort was cancelled out by Tim Cahill.
Ronaldo said: "I think the team played very well.
"In the first half it was not too good but second half I think we played better, created more chances and I think we deserved to win.
"It's important, we've got many games coming up now and it's important always to win. At home you need to win.
"With the next games, there is not too much time to rest, so it was important to win to stay near the top."
Following yet another match-winning display, Ronaldo added: "I'm very happy with Christmas coming up. I think Father Christmas gave me my present early.
"The most important thing is the team. The game was very tough, Everton played very well and created a few bad things for us. I think the lads played very well."