Plot: Jamie Oliver shares a £1 spaghetti frittata inspired by Italian grandmothers, and rustles up pork pies in an air fryer, using mince, homemade flaky pastry and a jar of piccalilli. He also cooks a budget-busting batch of butternut squash dal with low-cost lentils and homemade cheese, a DIY takeaway chicken shish kebab, and mint choc chip whoopie pies