If you can't go Raw, try Chicken Soup for the Dog Lover's Soul, Innova Evo, or Canidae. I'm trying to get my 2 on Canidae..
Show her this vid. My mom was the exact same way about feeding our dogs Raw. It's just not cost or time efficient for us right now, so we're back on kibble.
http://youtube.com/watch?v=DL2KluuiKck <----I made that to show to my own mom, and yes it has some PT dogs in it. Also, see if you can find my Raw discussion thread, I'm too lazy to dig out the link .