My ds was not very interested in food at that age, although he was not under weight he always gained weight slowly. Its only been since he was 1 that he has been interested in food, more so since I started feeding him what we were eating. Curries and all! (not too hot though but he loves it) he seems to like food with lots of flavour.
I know how stressful it is so hopefully she will start getting more interested as she gets older and when they start walking they should get hungrier too.