It's Pi Day, and the obvious way to celebrate would be to bake up a sweet pie of your liking and devour away. But we like to think outside the box. We also really like pizza. Today, we think you should celebrate 3/14 with a savory pizza pie, so we've rounded up some of our favorite recipes for you. From a St. Patrick's Day corned beef and cabbage pizza to Wolfgang Puck's smoked salmon pizza, click through to find a pie that will tickle your taste buds.