I love roast beef.  And I love roast beef done in my crock pot.  But the last time I did it, and innocently mentioned that it was prime rib ... well let's just say it wasn't pretty. Just so you know (which I didn't) it is NOT OKAY to cook your prime rib in the crock pot.  It's like blasphemy or something.  Blasphemy on the prime rib. What the hell do I know? Absolutely nothing ... which is why, when faced with these dilemmas, I pick up the phone and call my friend Donna.   She is the smartness of all things culinary.