Diabetes and Blindness

After 7 days at the Vet's, Sophie finally came home..she's doing great!! She's on insulin twice a day, but not a problem...The big problem is getting her back on dog food..she has turned her nose up to every one we've tried. She's now getting boiled chicken, and brown rice..DW is very concerned because she has to eat twice a day because of the shots....Any suggestions from other dog lovers as to how to get her back to acting like a dog and eating dog food would be greatly appreciated. We tried mixing different portions but she just turns her head away from everything but chicken, hamburger or wild rice
thanks for all suggestions
Dan