Is it wrong??

OK...I have been cooking ground beef EVERY night for Rory, my beloved Great Dane, and Sampson, my beautiful black lab. It is getting very tiresome, but I can't see anyway out of it. They just turn their noses up in disdain for any "dog food" and simply won't eat. Having said that, and keeping in mind that my dogs are VERY important to me, how do I break this ugly trend? There are nights when I am simply wiped out and don't have the energy to be making piles of ground beef. Does anyone else cook for their dogs? Do I need some sort of therapy??