DoorDash and Kroger are expanding their grocery delivery partnership. Starting Oct. 1, DoorDash will offer delivery from Kroger’s 2,700 U.S. stores, both companies said Monday. San Francisco-based DoorDash, which is the largest U.S. delivery provider, launched grocery delivery in 2020 with a handful of partners, including Fresh Thyme and Meijer. DoorDash first partnered with Kroger in 2022, when it started delivering flowers, sushi and prepared meals from a limited number of stores. Until now, DoorDash ...