This is the ONLY way that I cook a pot roast in the crock pot!

An old friend of mine who is a great cook told me about this several years ago.
I rinse off the frozen roast, add a cup of water to seasoning mix, and start it at bedtime the night before. I put it on low. In the morning I turn the roast over, spoon the gravy over the top, and let it continue cooking on low. When I get home from work (around 4pm) I turn it over again. If one of my sons is home during the day I ask them to turn it, but if not then it still cooks fine.
At dinner time, it is fall-apart tender with a delicious gravy.
I've never cooked any other meat frozen in the crock pot. Any frozen chicken crock pot recipes out there??