With the evenings drawing in, it’s comfort food season once again, when we seek solace in heartier, stodgier foods. Who doesn’t want a plate of steaming cottage pie on a chilly autumn evening, or a bowlful of comforting crumble and custard? But our traditional British favourites often get a bad rap for being unhealthy – too many calories, an excess of fat, sugar, salt or all of the above. Indeed, even a small fish and chips from the local chippy packs nearly 1,000 calories and 50g of fat (NHS re