Heat oven to 325°F. Line cookie sheet with foil. Place bread slices on foil-lined cookie sheet; spray lightly with nonstick cooking spray. Bake at 325°F. for 6 to 9 minutes or until crisp. Place crostini on wire rack; cool completely.
Meanwhile, in decorative bowl, combine all salsa ingredients; toss gently to mix. Let stand at room temperature for 20 minutes to blend flavors or refrigerate until serving time. Serve salsa with crostini.