Which concept promotes the idea of using ingredients that are often overlooked or discarded?

The concept that promotes the idea of using ingredients that are often overlooked or discarded is best aligned with zero waste cooking. This approach emphasizes minimizing food waste by utilizing all parts of ingredients that may typically be thrown away, such as vegetable scraps, bruised produce, or stale bread, in order to create flavorful dishes.

Upcycling focuses on transforming by-products or unwanted materials into new products of higher quality or value, which is related but not specifically about utilizing whole foods or preventing waste in the culinary sense. While farm-to-table emphasizes sourcing ingredients directly from local farms to ensure freshness and sustainability, it does not directly address the use of ingredients that are overlooked. Food innovation generally refers to creating new food products or experiences but does not inherently advocate for utilizing discarded or less desirable ingredients.