2–3 medium carrots, peeled and diced
1 medium courgette, trimmed and diced
200g/7oz mushrooms, any kind, sliced or quartered if large
1 medium onion, finely chopped
400g tin chopped tomatoes
400g tin green lentils, drained
3 tbsp tomato ketchup
250g/9oz dried spaghetti
salt and ground black pepper
½ tsp dried mixed herbs
2 tbsp vegetable oil
1 vegetable stock cube
50²µ/1¾´Ç³ú cheddar, grated