COMBINE cheese, olives, onions and peppers in medium bowl. Add dressing and zest; mix well. Refrigerate 1 hour.
HEAT broiler. Cut baguette into 48 slices, each about 1/4-inch thick. Place in single layer on baking sheets 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. cheese mixture onto each toast slice just before serving.
serving size = 2 topped toast slices (31 g)