A light but tasty dish perfect for the warmer months ahead A delicious twist on a pasta sauce, using nuts, spring onions and ricotta Credit : Haarala Hamilton and Valerie Berry Diana Henry The Telegraph's award-winning cookery writer Diana Henry is the Telegraph’s much-loved cookery writer. She shares recipes each week, for everything from speedy family dinners to special menus that friends will remember for months. She is also a regular broadcaster on BBC Radio 4, and her journalism and recipe books, including Simple and How to Eat a Peach, are multi-award-winning. A mother of two sons, Diana can satisfy even the fussiest of eaters.    See more Published 22 May 2026 11:22am BST This pesto (which has no herbs in it) was my obsession this summer. As well as on pasta it’s lovely tossed with green beans, asparagus and waxy potatoes. Or as a topping for crostini.…