Greggs launched its vegan sausage roll in January - to capitalize on Veganuary momentum - in around half of its stores. Within weeks, it was selling out in bakeries across the UK.The chain recently announced it would be rolling the snack out to all its 1,900 outlets - with every store being stocked by March 8.
Since the launch, Greggs has reported an increase in sales and share prices.
"The exceptional level of like-for-like sales growth that began in January has been sustained in the months that have followed, driven by increased visits to our stores," Greggs said in a trading update.
"Looking forward, the sales comparatives from 2018 become progressively stronger but we now anticipate materially higher sales for the 2019 year as a whole than we had previously been expecting."
As a result, Greggs says it has launched another vegan product as part of its new summer menu -a revamp of its Mexican Bean & Sweet Potato wrap that it describes as 'a new and improved'. According to the chain, its new menu also features pasta salads, fruit and cold drinks.