President Barack Obama has made a habit of popping in for quick lunches around the D.C. area, stopping at a Shake Shack and a Alexandria burger joint in recent months. And Monday, on the way to a speech on working families, Mr. Obama made a largely uneventful stop at Chipotle. Uneventful, that is, until White House photographer Pete Souza posted a photo late Monday of the president ordering his burrito bowl toppings.