Yes, it exists, and it's not the only Fat menu item at this place! Now if I could only find a pic of the sandwich itself!
From: http://valuemenus.com/scarletmenus/menus.php?R=57&item=
Cheesesteak w/ Finger Mozzarella Stick, French Fries, Marinara, Lettuce, Tomato
[CONTINUED (Photo)]
SupersizedMeals.com
http://www.supersizedmeals.com/food/article.php/20071118-Fat_Bitch_Sandwich