You can try a pill shooter. It looks kind of like a syringe, and many people say it's easier than trying to hide a pill in food. Have you seen Pill Pockets? Many kitties like the taste. They're soft treats, sort of like a sticky dough, with a hole in the center where you put the pill. They're huge though, so you can get at least 3-4 "treats" out of each Pill Pocket. I stopped using them because they changed the formula and my cats no longer liked them. And the new ones you couldn't completely seal around a pill. They kept falling apart, and then the pill falls out and that's the end of that experiment.
But some kitties like the new formula better, so maybe it's worth a try.