If you don't already do this, trust me, you need to start. Just ask the person when ordering at the store or on the phone (does anybody still do that?). Online there will either be an option in the menu or you can state it in the "additional instructions" box. Even at a joint like Little Ceasars, if you ask for it, you will get a fresh pie (if you're willing to wait). If they tell you they already do cook it well done, reply with, "Just testing y'all." Getting an undercooked pizza is a travesty. Fight against this injustice!