Preheat the oven to 425° F. In a large skillet, add the oil and chicken. Season with pepper. Cook until browned all over, about 5 minutes. Add the shallot, ginger, and garlic. Cook 2 minutes, then stir in the vegetables and cook 5 minutes, until wilted. Add the soy sauce and let the sauce caramelize around the meat. Stir in the sesame seeds, then remove from the heat. note: if making vegetarian, just omit the chicken and start the cooking process with the oil and shallot. Cook the vegetables down until caramelized.  To assemble, spoon 2 tablespoons of filling onto each wrapper. Brush water around the edges of the wrapper, then roll up and place on a baking sheet. Brush each roll lightly with olive oil. Bake for 10-12 minutes, then flip and cook another 8-10 minutes more, or until the rolls are crisp.Meanwhile, make the sauce, combine all ingredients in a medium bowl. Serve the rolls warm, topped with green onions, and the sauce on the side for dipping.