PITTSBURGH -- With pumpkins, apples and jewel-colored squashes the showpieces of fall farm stand displays, choosing to make a meal that leans heavily on citrus might feel misguided on a cool, sunny day in October. Peak season for lemons, oranges and grapefruit doesn’t kick off until late November, when specialty and heirloom citrus fruits like minneola tangelos and Meyer lemons find their way ...