I believe brands such as Natures Variety and Innova Evo have grain-free milkbone type treats. Would you feel comfortable giving her something like that? Maybe if you gave her some type of crunchy cookie, she would feel like she wasn't being left out.
Natures Variety also has a line of raw, frozen foods. My dog wouldn't eat anything more than once or twice until I discovered that food. It would be similar to the BARF I guess, but it is packaged in frozen nuggets or patties. It has meat, fruits, and vegetables in it (grain free).