Ingredients

  • 2 tablespoons oil
  • 1 onion
  • 200 g carrots
  • 1 celery
  • 250 g mushrooms
  • 400 g tomatoes
  • 1 tablespoon tomato puree
  • 1 sprig thyme
  • 400 g lentils
  • 300 g sweet potatoes
  • 300 g potatoes
  • 50 g creme fraiche

Method

  • Preheat the oven to 200C/180C Fan/Gas 6.
  • Heat the oil in a pan and cook the onion over a medium heat until soft.
  • Add the carrots and celery and stir well.
  • Cover and cook over a low heat, stirring occasionally, for 5 minutes.
  • Add the mushrooms and cook, stirring occasionally, until the juices run.
  • Increase the heat and cook, stirring often, until the juices evaporate.
  • Add the tomatoes, tomato puree, thyme and lentils and simmer, stirring occasionally with a spoon for 10 minutes.
  • Transfer the mixture to a baking dish.
  • Cook the sweet potatoes and potatoes until tender.
  • Drain and mash with the creme fraiche.
  • Put on top of the mushroom and lentil mixture.
  • Bake for 20 minutes.