Not so long ago, humanity’s main pursuit was finding food and staving off hunger. But these days, we’re throwing out strawberries. We’re letting salad greens go bad in the crisper. And when it comes to transforming those broccoli stalks or potato peels into something delicious, we’ve lost the know-how.

In an age where the average home discards enough edible meals to sustain an entire extra person, reclaiming our kitchens from unnecessary food waste has never been more urgent. On today’s show, au...