Foods to consider: Eat 'pi' foods. Many creative ways exist to do this. First, there's the punny approach, like eating pineapple, pizza, or pine nuts and drinking pina coladas or pineapple juice. Second, there's the shape approach, like making cookies or pancakes shaped like pi or making a pie with a pi cut out of the center of the crust. Of course, whatever you do, Pi Day is simply incomplete without eating pie, even if you don't feel artistic enough to carve the pi symbol out on the top.