I say "Hawaiian" in quotes because I don't like the traditional (is Hawaiian pizza even traditional?) Canadian bacon part of the equation. I substitute in pepperoni instead. So sue me. They're both pork products, and pepperoni is so much spicier.
The Hawaiian connection is, of course, a nod to the president's home state.
Italian Fiesta Pizzeria: The Obamas' Chicago Pizza Favorite, Reviewed
Slice's Endorsements for Presidential Nominees (We called this thing from the beginning, folks)