Consider Hawaiian pizza: The divisive pineapple-and-ham topped pie is viewed as an abomination by many pizza lovers, including the president of Iceland, who once threatened to ban it. Consider, too, boxed mac and cheese. In a world of wonderful noodle dishes, from silky cacio e pepe to ramen served in a rich broth, Americans dump milk and neon-orange cheese powder on a bowl of macaroni and call it dinner. Even sushi, far from its native Japan, can find itself transformed into pan-fried “sushi pizza,” adorned with all manner of sweet…