Puy lentils, lentille du Puy, (or French green lentils) come from the Le Puy region of south-central France. These small, green, peppery lentils are often called ‘poor man’s caviar’ in France. I hadn’t really eaten lentils, outside of the occasional curry, before our trip to France a few years ago. But Puy lentils have since become of favourite. They…