I'm sure it will take time. I know it hurts to watch, but you just have to be creative and keep trying something different.
Have you tried to give her ground chicken or ground roast beef? In her case, I would put just a little bit of meat in some broth and work from there and see if as she heals that maybe she can handle more meat in it as time goes on. That is, if she drinks OK. Does she drink her water with no problem?
How about scrambling her an egg and smashing it?
