My vet recommended a dry food only diet for my extremely fussy cat, he was approx 10 months at the time. Now about 4 months later I have started fostering kittens through SAFE, so have wet kitten food in the house again, and surprise surprise, Mr Fuss Pot has started eating the wet food!

As Marydean mentioned, I would try change her food gradually if you were to opt for a vet brand dry food.