This food is popular in places like the U.S. and Canada, but is considered a sacrilege and an insult to traditional pizza in places like Italy. Pizza is a cuisine that originated in Italy, and pineapple pizza was not invented by Italians, but by Greek-Canadians Sam Panopoulos once again made pizza by putting in a can of pineapple to make this sweet-and-sour-flavored pizza, the brand of the can is Hawaiian, and the pineapple pizza also has an alternative name of Hawaiian pizza.