Try Chicken soup for the Cat lover's Soul/ and Chicken soup for the dog lover's soul.
I use the cat lover's soul one for my three older cats and they are doing wonderful on it. It is a holistic food without the big price tag...I pay $29(I live in Canada though) for a 18 lb bag which feeds three cats for a good 6 weeks. I think you and your kitty will be quite happy with it. My cats are all quite picky and loved chicken soup right away.