Tip: To make your own croutons: Cut day-old bread into 1/2-inch cubes. Coat a baking sheet with olive-oil spray; spread bread cubes in a single layer and coat them lightly with the spray. Season with salt and pepper. Bake at 350°F, stirring once or twice, until golden, 15 to 20 minutes. Cool; store in a plastic bag for up to 4 days.