Oh man! After they turn 1 (sometimes earlier) is when they start having their own opinions and asserting themselves. Is she still taking milk? Maybe you can try the food she really likes or exposure her to different kinds of food (porridge, soup/rice, noodles, pasta, steamed whole veg etc) and see what she eats. If she used to eat everything, her taste buds are probably developing and she may have more preference for certain textures now.
JoeyC