Our favorite Instagram shots of SF food truck fare

Food truck offerings have morphed from pre-packaged sandwiches and day-old donuts to some serious culinary treasures. And happily, San Francisco finds herself in the heart of this mobile cuisine movement. From a quick lunch stop in the FiDi to a Friday night at Off the Grid, San Franciscans snap up their food truck favorites; and we mean "snap" in more ways than one. Behold our favorite collection of San Francisco's food truck food as found on Instagram: