Midtown Manhattan is a dining wasteland. It improves as time goes on, but it's still not easy to get a simple, casual meal. But there are secret moves to be made. The bars at the toniest places are grossly underutilized for food, for example. And especially in those long, long blocks between Fifth and Sixth Avenues, there remain some unknown gems. So, from our headquarters at 30 Rock, here it is, your Midtown Restaurants Survival Guide.