For something heartier, serve it with a grilled cheese sandwich or baked sweet potato. It also makes a wonderful appetizer ...

A supermarket shelf stocked with tubs of ready-made Panera soup - MDV Edwards/Shutterstock Some people know it's fall when the PSL comes out, but if you're like me, it's all about Panera's best soup.

Beyond that, Panera's still got its all-star soup lineup on the menu: Black Bean, Baked Potato, Chicken Tortilla, Chicken Noodle, Creamy Chicken, Creamy Tomato, Greek-Style Lemon Chicken ...

This fall, Panera introduced two new warm and flavorful additions to their signature soup lineup, the Hearty Fireside Chili and Rustic Baked Potato Soup, as well as bringing back Autumn Squash ...

And the new Rustic Baked Potato Soup is made with potatoes, bacon, Monterey Jack cheese and chives, toped with asiago cheese. For the chilly season, Panera also brought back its Autumn Squash Soup ...

And Rustic Baked Potato Soup is made with potatoes, bacon, Monterey jack cheese and chives, toped with Asiago cheese. Panera also brought back its Autumn Squash Soup, made with butternut squash ...