Minestrone

Ingredients

• 1 onion
• 2 carrots
• 2 celery sticks
• 1 courgette
• 2 potatoes
• handful of green beans
• ¼ cabbage
• 400 g tinned tomatoes
• 400 g cooked white beans
• 100 g small pasta
• 1.5 litres stock
• Parmesan
• olive oil
• salt