Try a nylabone to chew on. There is a Dog Food Rating post here that can take a look at to see who makes what and how it compares to other brands. Try for a grain free they seem to work well for bullys. It can either be an All Life Stages food or a Puppy Food, whichever you prefer. Many bullys have problems with chicken based foods more than other kinds but each dog is unique. Just remember if issues with her health start, first thing to look at is her food and her reaction to it.
Here's a link to the pages about feeding