Recipe video above. Lentils can be so dull. Trust the French to make them exciting!! Lentil Ragout is a classic French way of cooking lentils. Aromatics are sautéed before simmering Puy Lentils in stock so they absorb the flavour. It's an outstanding side dish that's easy to make, the perfect side for any protein.Or just do as I do and eat a whole bowl of this for lunch!