I'm sure I read a post on here somewhere, which said that dogs love Rice Pudding. Obviously it's not ideal in the long term, but it might kick start her appetite. Someone also mentioned Liver-cake, but this was used as a treat. I'm sure more knowledgable folk will be along with some advice for you.
Have you tried scrambled eggs or chicken, roasting the chicken seems to make it more appetising. Cut it into small pieces and feed it by hand. It might just kick start her into eating.