I've been feeding Pixie a completely raw diet for the past two weeks now and will continue to do so for the rest of her life!! (She's about 6 months now). I was feeding Royal Canin but she was starting to itch... I did a lot of research and when it comes down to it, it just makes sense to me. It's what they were meant to eat! Commercially processed dog foods weren't made until the 1920s (I think). Up until then, all dogs were fed a raw diet! I feel a lot better knowing that there isn't any "junk" going into my dog. There's no corn fillers or chemical additives or "by-products" or anything else that my dog doesn't need.
I'm using Nature's Variety and Nature's Menu. She's getting three different "flavors" (Beef, Lamb and Venison) just for some variety. I know they make chicken and turkey, which I'll probably try in the future.
The Nature's Variety comes in little 1 oz medallions (Pixie is getting three or four a day). I just put a day or two's ration in a tupperware container and thaw them in the refrigerator. I'm really careful about the whole bacteria thing (wash/disinfect everything) and surprisingly, Pixie doesn't get any of it on her. I'll break the cubes up into little pieces and she'll grab one chunk at a time, I think I make more of a mess than she does!
Like smmrpm said, there's a bit more to it than just ground beef (they need organ meat, bones, some veggies). I like using the pre-packaged raw diets because it already has correct amounts of everything they need. Just do your research. There's plenty of books/websites on the subject....