[kjc]

What was her diet prior to being adopted? How long have you had her? How is her body weight?
I had luck transitioning my 13 year old by wetting the dry (let it soak up the water (boil cold water, don't add hot tap water)) and mixing it with canned, or pureed chicken (make it so fine or liquid so it cannot be picked out, You could try putting the dry in a blender to make it a smaller size, also.

Be sure to give her only a small amount of canned, or decrease the amount with each feeding. Sometimes, once they eat a tablespoon or so of something they like, their appetite kicks in and they may eat some of what they think they don't like to get full.

Try sprinkling some Parmesan cheese on top... kind of stinky but many like it.

Note from a Vet: It is better for a dog to eat a bad food than no food at all.