PREHEAT broiler. Place bread on baking sheet. Broil 2 to 3 min. on each side or until lightly toasted on both sides. Brush 1 side of each toast slice with 1 Tbsp. oil.
MEANWHILE, mix tomatoes, 1 Tbsp. remaining oil, the cheese, onions, parsley, olives and pepper.
SPOON about 2 tsp. of the tomato mixture onto each toast slice just before serving.