I'm also looking for a Senegalese restaurant. I have great memories of my Peace Corps days when our Senegalese chef would make Poulet Yassa (orangy, oniony, spicy chicken to die for). ANY chance I can get some here in LA?
I highly recommend Ngoma. The stews are simple comfort food with wonderfully mild spices and the meat falling off the bone. The ambiance is warm and light and relaxing. The wait staff are very friendly. If you want a satisfying happy dining experience, Ngoma is a great choice.