2 medium carrots or 2 yellow peppers, cut into 2cm/1in chunks
2 celery sticks, trimmed and thinly sliced
2 garlic cloves, thinly sliced
1 medium onion, sliced
1 head young spring greens (approximately 125g/4陆oz), trimmed and sliced
400g/14oz tin butter beans, drained and rinsed
400g/14oz tin chopped tomatoes
sea salt and freshly ground black pepper
1 tsp dried mixed herbs
calorie controlled cooking oil spray
1 vegetable stock cube