Popsugar Parenting Costco Costco Secret Pizza Menu This Mom Revealed a Costco Secret Menu Item, and We're Suddenly Craving Pizza 29 August 2018 by Angela Elias View On One Page Photo 2 of 2 ADVERTISEMENT () Start Slideshow A post shared by ReBecca Alstrom (@geekymomadventures) on Aug 12, 2018 at 6:53am PDT Share This Link Copy ← Use Arrow Keys → 2 The secret menu item in all of its glory! Previous Next Start Slideshow CostcoPizza