Remove stem of mushroom. Remove ribs gently with a spoon. Slice into thin 3 " strips. Add olive oil to a heated deep frying pan. Add shallots, leek, artichoke, mushroom, and garlic. Saute for 5-7 minutes. Add water and bouillon. Bring to a boil. Add cous cous. Reduce to a simmer covered until water is absorbed. Let sit 5 minutes.