The treat was launched in response to a petition by animal welfare organisation Peta that attracted 20,000 signatures.
True-to-from, Morgan offered up an unsolicited opinion, calling Greggs "PC-ravaged clowns".
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Instead of ignoring the host's comments, Greggs chose to hit back and even suggest how the host gets easily "triggered" by veganism: "Oh hello Piers, we've been expecting you".
James explained that until a few years ago he bought vegan sausage rolls from a shop on Reform Street, but now has to resort to going to health food stores, which have the snack delivered from Edinburgh. The company sells 1.5m traditional pork sausage rolls a week. A meat one. Real meat.
It is now available in 950 selected stores in the United Kingdom starting today and only costs £1.
You've either been disconnected from the world for the past 24 hours or you've heard everybody talking about the Greggs vegan sausage roll.