1. Preheat oven to 425°. Arrange bread slices on a baking sheet, and coat with cooking spray. Sprinkle with desired amount of salt and pepper. Bake 8 minutes or until toasted.
2. Process beans and next 3 ingredients in a food processor until smooth, stopping to scrape down sides as needed. Toss together olives and next 2 ingredients. Spread bean mixture on toasted bread slices, and dollop with olive mixture. Garnish, if desired.