This hearty Italian soup is made with pasta and beans and finished with a generous sprinkling of parmesan.

Serves 4, prep 30mins, cook at least 2 hours

• 100g/3½oz smoked, dry-cured bacon lardons
• 2 carrots, roughly chopped
• 2 sticks celery, sliced
• 1 onion, roughly chopped
• 2 garlic cloves, crushed
• 2 sprigs fresh rosemary, needles finely chopped
• 1 tsp dried thyme
• 1 tbsp tomato purée
• 400g/14oz can chopped plum tomatoes
• 1.2 litres/2 pints good-quality chicken stock
• 400g/14oz can cannellini beans in water, rinsed and drained
• 50g/1¾oz spaghetti, snapped into short lengths
• 100g/3½ head baby leaf or spring greens, thickly shredded
• Salt and freshly ground black pepper
• 2 tbsp extra virgin olive oil
• 25g/1oz parmesan, grated

1. Put a large frying pan over a low heat, add the lardons and cook for 10 minutes until crisp, golden and the fat has run from the meat. Transfer onto a plate.
2. Tip the carrots, celery and onion into the bacon fat and fry for two minutes before adding the garlic, herbs and tomato purée. Cook for one minute, then add the tomatoes and most of the stock. Bring to the boil. Carefully transfer the soup to a slow cooker, cover with the lid, then cook on high for four hours until the vegetables are tender.
3. Stir the beans and pasta into the soup, adding the rest of the stock if it seems overly thick. Scatter the shredded greens over the top of the soup, then re-cover with the lid. Cook for 30 minutes until the pasta is tender. Stir in the greens, season to taste with salt and freshly ground black pepper, then serve in bowls with a drizzle of oil and plenty of parmesan.

Source: Jane Hornby http://www.bbc.co.uk/food/recipes/slow_cooker_minestrone_24914