I'm not sure what you have all tried with her, but in case you haven't, you should try some canned food. All my kids love Merrick's varieties of canned food. It might be easy for her to eat it because of minimal chewing, and maybe it'll smell so good she won't want to leave.

either that, or trying baby food i've found works good too. you can get so many different kinds of baby food, and maybe mixing a few different foods (like chicken, sweet potato, some veggies) will give her some good nutrition.

i hope she gets better! My crew will be thinking about your family!