One-pot creamy nduja pasta - Good Food Middle East

Ingredients

• 2 tbsp olive oil
• 1 red onion , finely chopped
• 2 garlic cloves , grated
• 2 tbsp nduja
• 65g green olives , roughly chopped
• 200g cherry tomatoes , halved
• 400g mafalda pasta
• 1 litre hot vegetable stock
• 4 tbsp mascarpone
• 50g parmesan , grated, plus extra to serve