Ok, if you've seen my experience from Lamb Alley, you know that Marrakech has some serious lamb. While Lamb Alley is the lunchtime hotspot, at night you need to hit up the lamb vendors which set up at the north end of Jemaa El Fnaa. Basically, the food area is divided into several parts. There are the mixed grill stations (these are the guys that around out hustling you, telling you that you look hungry, etc.) and these are generally somewhat of a rip-off and not all that good. Then you have the specialized section where you'll see a line of stalls selling snails (delicious), a popular soup place, and finally two stations selling roast lamb around stall #66, I believe.