Yes, uncooked pizza or bread dough can certainly be cooked in a waffle maker, as can refrigerated crescent rolls. Be sure to use nonstick cooking spray on the inside of your waffle maker so the dough doesn’t stick in between the divots. Because the dough will rise as it cooks, it is important not to lock the lid on the waffle iron. Push it down firmly when it is inside the waffle maker, but allow it to rise as it bakes.