Preheat your oven for 350 degrees. Divide the old or stale bread by tearing into even pieces. Lay flat on a baking sheet. Cover with olive oil, garlic powder, oregano, salt and pepper. Toss together well. Bake for 5 minutes, toss with spatula, then bake another 5-7 minutes. Watch carefully the first time you bake, ensuring peices arent burnt. You want to see them still white before golden. This way there is still a little chewyness in the crouton.