Brie, basil and sun-dried tomato pasta sauce

Rinse and drain the lentils, then turn into a suitable saucepan. Blend the chopped onion, celery, parsley and garlic with the tomato.
Pour into the saucepan, add the stock and simmer, partially covered, for 40 minutes, or until the lentils are very tender.
Season to taste and blend roughly to produce a textured soup – if it seems too thick, thin it down with stock.
Heat the falafels according to packet instructions then serve with the soup, a few spoonfuls of yoghurt and a sprinkling of parsley.
Cook’s notes: For a quicker soup, use red lentils, and, for a richer topping, substitute plain yoghurt with Greek yoghurt.