Fine Print Buy any giant slice, get a Giant Cheese Slice FREE. Dine in or pick up only. One use per visit per customer. Some toppings are subject to a minor change. Pizza Casbah is Located in Fort Collins, Colorado. Pizza Casbah Was Featured on The Food Network's Outrageous Food! With coupon only. Coupons may not be combined with any other offer. Coupon void if altered.