Watch her for eating cat litter, as certain types are toxic.
You could try her on some smelly white fish. You can get a big back of frozen white fish from Lidl at a very low price and just defrost one at a time. I also cook it in the microwave for 2 minutes.
If that fails, you could get a couple of tins of feline a/d from the vet, its not cheap (about £1.50 at tin) but I've never known any kitten or cat refuse that yet
