The chain started testing the breakfast sandwich made with plant-based sausage from Beyond Meat in July in Manhattan locations. Initially, Dunkin' was planning on rolling out the menu item nationwide in January. Now, it's launching Nov. 6.

Dunkin' is moving up the date of its nationwide launch of its Beyond Sausage sandwich after successful tests in Manhattan.

The Beyond Sausage sandwich, which comes with egg and cheese, was the number two selling sandwich in Manhattan locations, lagging behind only the bacon, egg and cheese bagel, the company said Monday. Sales were more than double Dunkin's original forecast, and customers were buying it during all times of the day — not just typical breakfast hours.

Dunkin' is looking to replicate that success across the country with the permanent menu item. But nationwide launches of Beyond products do not guarantee that the item will be on menus forever. Tim Hortons, the Canadian coffee chain owned by Restaurant Brands International, pulled Beyond's sausages and burgers from its menu in every province except Ontario and British Columbia in September.

Shares of Dunkin', which has a market value of $6.3 billion, are up 18% this year. The stock of rival Starbucks, valued at $103 billion, is up 33% in the same time period.