COMBINE cheese, olives, onions and peppers in medium bowl. Add dressing and lemon peel; mix well. Cover. Refrigerate at least 1 hour or up to 24 hours.
PREHEAT broiler. Cut baguette into 48 (1/4-inch-thick) slices. Place in single layer in baking pans or on rack of broiler pan. Broil 1 to 1-1/2 min. on each side or until lightly toasted on both sides.
ADD parsley to cheese mixture; mix lightly. Spoon 1 Tbsp. of the cheese mixture onto each toast slice just before serving.