1 carrot, peeled and finely chopped
1 celery stick, finely chopped
½ lemon, juice only (optional)
100²µ/3½´Ç³ú mushrooms, finely chopped
1 onion, finely chopped
400g tin chopped tomatoes
200g/7oz brown or green lentils
1 tsp yeast extract, such as Marmite (optional)
salt and freshly ground black pepper
½ tbsp olive oil
1 tsp dried oregano or thyme
1 tbsp tomato purée
500ml/18fl oz vegetable stock
100ml/3½fl oz vegan red wine