From http://www.steaknshake.com/locations/24125-steak-n-shake-west-morton-jacksonvillePhilly Cheese Steakburger

Menu
If there is a discrepancy between the establishment's online price and the price at their business establishment; the latter shall be considered the correct price.

Steak 'n Shake Menu

2005 W Morton Ave, Jacksonville, IL

American Restaurant

(217) 245-9422