Try the yogurt mash for her. It works really well with ones who are able to mostly eat on their own & just gives them that extra little bit of help & some extra protein as well.i have an ameracuna hen that was hatched in March 2012 with a crooked beak and is still doing great today! I have a feeder that fills from the top with out a lid she is just big enough to get in there to eat and puts her whole face in the food. At least she figured it out so i don't have to do much except trim the beak. It sounds like i might need to separate her this winter because she is a bit skinny compared to other hens.
Good Luck!