Is it okay to feed your cat generic cat food?

Feed your cat what it is used to. I quit feeding Miss Kitty Special Gourmet dry cat food because I fouind that it was too low in protein and was mostly filler by corn meal. She wouldn't eat the more expensive food. I tried slowly mixing it with the old food and still she wouldn't eat it. Fix your cat what it likes to eat and ignore everything else. To those that favor the premium cat food I understand that it is better for a cat. I just can't get my cat to eat it.