Will history buff and food blogger Sam and her husband Neil impress guest judge and godfather of Italian gastronomy Antonio Carluccio with their main course, based on his mystery ingredients of courgettes, courgette flowers and aubergine? The couple take a gamble by offering their guests a vegetarian dish of fiori di zucchini ripieni and melanzane parmigiana which they follow with an Amalfi lemon tart, and strawberry and basil sorbet. Will their green cuisine win the week?