4-6 Servings Ingredients For the filling 1 tablespoon extra virgin olive oil ½ medium white or yellow onion, thinly sliced (about ¾ cup) 3 ears sweet yellow corn, kernels removed from their cobs 1 cup jumbo lump crab meat, pickled over very well for shells ¾ cup mascarpone Zest of 1 lemon, freshly grated Pinch…