Dewey's Pizza is expanding, and its next location will be its largest one yet.

The pizzeria is planning to open a 4,600-square foot restaurant in O'Fallon, Ill. this October. It will be located at I-64 and Greenmount Road.

And that's not the only location currently in the works. Dewey's says it's also planning to open an eighth St. Louis-area location, possibly in either south county or Creve Coeur. The restaurant also has locations in Ohio, Kentucky and Kansas.

Dewey's Pizza, founded by Andrew Dewitt, the son of Cardinals Chairman Bill Dewitt, was brought to St. Louis.

You can check out Dewey's on Facebook, Twitter and Instagram.