Lentil Shepherd's Pie

Instructions

1. 1

   For the topping, cook the sweet potatoes in boiling water until tender. Drain and mash with olive oil. Season with salt and pepper.

2. 2

   For the filling, heat oil in a large saucepan over medium-high heat. Cook the onion, carrots and celery until soft.

3. 3

   Add the lentils, chopped tomatoes and vegetable stock. Bring to a simmer, then reduce heat and cook for 20-25 minutes, until the lentils are tender and the sauce has thickened.

4. 4

   Stir in the tomato paste.

5. 5

   Preheat oven to 200°C. Spoon the filling into a baking dish.

6. 6

   Top with the sweet potato mash.

7. 7

   Bake for 20 minutes, or until the topping is golden.