After having a recent scare with urinary crystals (not me, Snickers), I am very adamant about feeding people food.
However there are occasions, once a month or so maybe, when I make broiled tilapia or orange roughy... I make an extra filet just for my cats! I do not season it but just clean it off & broil it & tear it up for them. I figure unseasoned fish is okay once in a while.
Oh, and Thanksgiving & Christmas, since it is at my house; I have no choice really but to let them have ham & turkey. I have a picture of Snickers & Hammie standing near the counter staring & sniffing up at the Christmas ham. They CRIED until we gave them some!
I think as long as it's not a regular thing, so they get used to people-food, then it's okay. Snickers came from a place where he was fed bacon, eggs, sausage, red meat galore. And he paid dearly for it. When he came to live with me, I fed nothing but cat food; and he blocked up with crystals.
So I am real careful now!