Sweet potato lentil cottage pie

2 onions

2 carrots, peeled and diced

1 stick celery, sliced

200g mushrooms

3 cloves garlic, diced

2 Tbsp. tamari/soy sauce/liquid aminos

1 tsp cumin

2 tins of green lentils, rinsed and drained

1 tin chopped toms

For the topping

700g sweet potato

3 tsp butter

Glug of milk

Preheat oven to 180c fan/gas mark 6

Chop the sweet potato and boil for 15 minutes until soft, drain and mash

Meanwhile add oil to a large pan and saute the carrots, onions and mushrooms for 10 minutes until soft

Add the garlic and cumin and fry for another minute

Add the Tamari/soy/aminos, tomatoes and lentils and cook for 5 minutes

Add the mixture to a deep pie dish, top with the mash and bake for 20 minutes or until golden

Serve with some steamed greens