BBC Food - Recipes - Homemade minestrone

Ingredients

• 2 tbsp olive oil
• 1 large onion , peeled, sliced
• 150g/5½oz streaky bacon , diced
• 4 celery stalks, chopped
• 2 garlic cloves, peeled, finely chopped.
• 2 carrots , peeled, diced
• 2 potatoes , peeled, diced
• 1 litre/1 pint 15¼fl oz beef stock
• 30g/1oz tomato purée
• 400g/14 oz canned haricot beans , drained
• 1 bay leaf
• 1 tsp fresh thyme leaves
• handful chopped fresh parsley
• 400g/14 oz tomatoes , chopped
• 100g/3½ oz spaghetti , broken into 2cm/1in pieces
• salt and freshly ground black pepper
• 1 crusty white bread loaf, cut into thick slices
• 1 tbsp olive oil
• 200g/7oz mozzarella , torn