350驳/12录辞锄 broccoli, stalks and florets roughly chopped
8 cherry tomatoes, halved
1 leek, sliced
1 tsp Dijon mustard
325驳/11陆辞锄 pasta shells (conchiglie)
50驳/1戮辞锄 plain flour
salt and freshly ground black pepper
1 tbsp breadcrumbs
pinch cayenne pepper
1 tbsp pine nuts (optional)
50驳/1戮辞锄 unsalted butter
175g/6oz cheddar, grated
2 tbsp mascarpone
625ml/21fl oz semi-skimmed milk
1 tbsp grated Parmesan