VEGETARIAN COTTAGE PIE

Cook the lentils according to the pack instructions; put the dried mushrooms in a bowl and pour over 150ml boiling water and leave to soak for 10 minutes; drain and reserve the liquid; chop the mushrooms
Boil the potatoes for 15-20 minutes until tender; drain, return to the pan, add the milk and butter and mash until smooth
Heat 1 tbsp of the oil in a large pan, add the onion, carrot, celery and garlic and fry over a medium heat for 10 minutes, until softened; stir in the paprika, chilli powder, rosemary, thyme, bay leaf, tomato puree and chopped tomatoes, and cook over a gentle heat for 10-15 minutes until slightly thickened
Heat the remaining oil in a large frying pan and fry the chestnut mushrooms for 5-10 minutes; stir in the rehydrated mushrooms, soaking liquid and wine; bring to the boil then reduce the heat and simmer for 2-3 minutes; stir in the lentils and cook for 5 minutes, then stir into the vegetable and tomato mixture; add the spinach and transfer everything to a 2-litre ovenproof dish; preheat the oven to 200C/Gas6
Spoon the mashed potato over the lentil mixture and scatter the cheese over the top; bake for 25 minutes until the top is golden and filling is piping hot