How old is she? It maybe that she's just not interested, they do say 'food for fun until they're one!' meaning they don't get a great deal from solid food until they're a year, it's just about having fun and experimenting, they get most of what they need from their milk, I personally wouldn't be worried at all but then I am so laid back about these things I'm practically horizontal! Have you tried babyled weaning or finger foods?