Good luck Toughcookie- I had to ween my 2 cats off of canned food about 6 months ago
They used to get it once a day, so I started feeding it every other day, then every 3 days, and so on...............
They hated it at first, especailly Wylie. In fact, HE did not eat for a couple days when I quit it all together.
Now, I don't think either one of them even remember it

*** they do get tuna once a week or so for a treat.