Warm up with this hearty Rhubarb Lentil Soup recipe. Made with chard, butter, brown mustard seeds and cumin seeds. Easy step-by-step instructions included.
This Rhubarb Lentil Soup relies on simple, everyday ingredients such as rainbow chard leaves, tbs unsalted butter, brown mustard seeds and cumin seeds. It comes together quickly and makes 4 servings, at about 677 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.
It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.
Updated Jun 30, 2026