1 heat olive oil in large skillet over medium-high heat and brown chicken, turning once, about 5 minutes. stir in onions and celery, cook, stirring occasionally, until tender, about 2 minutes. stir in broth, wine, olives, and lemon juice. bring to a boil. reduce heat to low and simmer covered until chicken is thoroughly cooked, about 10 minutes. stir in lemon peel and mayonnaise. serve over couscous. 