First, make the croutons: Cut the bread into 1" cubes. Drizzle the cubes with olive oil, add them to a parchment lined baking sheet. Next, sprinkled the bread cubes with dried garlic and herb seasoning and bake them on 400 for 5-10 minutes until they are crispy and brown. You can also air fry them on 400 as well! Make sure to continuously keep checking the croutons to make sure they are not burning. They cook very fast in the air fryer!