Pi Day 2026 deals: Score free food from Burger King, 7-Eleven, DoorDash, Papa Johns, and more

We're on a mission to bring you free food deals on special occasions. When we took on this task, we were expecting a lot of planning and careful preparation to make sure we were across the handful of events that go live every year. In reality, we're actually inundated with these free giveaways. It turns out that leading stores don't need much of an excuse to throw free food your way.

The latest event is Pi Day, an annual celebration of the mathematical constant π. Pi Day takes place on March 14 since 3...