If you want to feed treats, you might try PureBites freeze dried chicken. Most cats go crazy for it. It's nothing but chicken breast.
For Thanksgiving, I cook a turkey breast and share a little of the meat with them, since they've been smelling it all day, making a festive occasion out of it, sitting on the floor with a newspaper spread out and hand feeding the small pieces of turkey to them. They even sit around me in a circle and wait their turn.
(I also do this whenever I roast a chicken)