British woman Mairead Sheehan recently embarked on a challenge to visit every location, nearly 2,000 of them, of convenience chain Greggs in the United Kingdom to purchase a single item: Greggs vegan sausage roll. The chain first debuted the vegan option—which is made with a Quorn-based sausage—in January at 950 stores and, after gaining unprecedented media attention and increased sales, expanded the popular vegan sausage roll to all of its stores in March. “When Greggs brought out the vegan sausage roll I was in heaven,” Sheehan said. “I started posting pictures on Instagram and my friends thought it was hilarious—then strangers started commenting,” Sheehan said. “There are all sorts of places that do vegetarian junk food but for me it’s always been a novelty—my friends were getting a sausage roll when hungover and I couldn’t do that.” The lifelong vegetarian has already visited more than 50 stores and plans to go to multiple locations per day to complete her mission.