> My cat won't touch most human food, except roast beef sandwich slices.

My cats eats canned tuna (in water, of course) and canned chicken, vienna sausages smashed up, sliced lunch meat diced up very, very thin, and as a rare treat, canned whipped cream. I keep a can around just for them; they come running whenever they hear the whipped cream squirting out of the can. They don't care for Cool Whip or real whipped cream, just the canned stuff. I had a cat that used to eat green beans, and another that would eat a little bit of Underwood Deviled Ham.