Cascade Animal Clinic
Giving your cat medication can be a challenge, even with the most co-operative of pets. The vets at Cascade Animal Clinic suggest that pills can be hidden in a tasty treat such as Greenies Pill Pockets, wrapped in lunch meat, dipped in canned cat food, chicken or other meat baby food. It works best if you have a second "treat" to follow the hidden pill to wash it down!
Here is a video from Cornell Veterinary School that demonstrates giving a cat a pill safely and humanely.