I hqve given Gracie cottage cheese in her food here and there at times. I found that when I gave it to her she wouldnt eat her food dry for a long period of time.
That was the only fall back about giving it to her as a treat with her meal. She would refuse to eat her food plain until she got REALLY hungry!
I wouldnt suggest giving it to her all the time just because once she gets use to it u may have a hard time getting her to eat without the cottage cheese. JMO