Greggs, the UK’s largest bakery chain, will end speculation about its hotly anticipated new vegan snack by launching a meat-free version of its popular steak bake. Since the runaway success of its meatless sausage roll, the chain – which serves more than 6 million customers a week from its 2,000 outlets – has been working to develop vegan versions of its other bestselling items. The new product arrives on Greggs’ shelves at the start of Veganuary – a growing movement that encourages people to embrace plant-based diets during January. The vegan steak bake has been created to mirror some of the original snack’s features, including 96 thin layers of puff pastry but without the egg glaze. The filling is made with pieces of the fungi-based protein Quorn instead of beef, mixed with diced onions and meat-free gravy. Costing from £1.55, it will go on sale in 1,300 shops from Thursday before being rolled out to the remaining 700 outlets on 16 January. The launch comes as retailers expand their vegan and plant-based offerings amid the growing popularity of flexitarian diets – where a largely vegetable-based diet is supplemented occasionally with meat.