Preheat the oven to 300 degrees F.
Combine the diced bread, olive oil, Creole seasoning, salt, and pepper in a large mixing bowl, and toss quickly to coat the croutons well. Transfer the croutons to a baking sheet and spread them out in a single layer. Bake, rotating the baking sheet front to back midway through, or until the bread cubes are crisp
all the way through and golden, 25 to 30 minutes. Remove the bread from the oven and set aside to cool completely. Store the croutons in an airtight container at room temperature.
Yield: about 6 cups