Or make breadcrumbs. Grind crustless bread roughly in a food processor. Mix them with olive oil until well coated. Bake them in a single layer in a pan in a 400-degree oven. Check them after five minutes, using a spatula or spoon to gather and redistribute them. Cook them until golden brown and crisp. Remove and shake onto a plate immediately to stop their cooking. Once cool, keep breadcrumbs in a ziplock bag at room temperature for a few days, or refrigerate or freeze for up to three months.