Olav Peterson, the brilliantly talented chef/grower/gardener/owner of Bittersweet, draws a crowd at his lovely West Washington Park restaurant, an urban oasis hedged with a stunning 600-square-foot organic garden (it doubles as a patio), from which Peterson plucks seasonal foodstuffs. Sure, locavorism started long ago, and sourcing locally is nothing new, but Peterson is his own pioneer, steadfastly dedicated to growing as many of his own ingredients as he possibly can — and the intimate relationship he has with those fruits, herbs and vegetables allows him to change his menu to accommodate the best of the season.