Asian Chicken Wrap

Name: Asian Chicken Wrap
Ingredients: 1 red bell pepper, sliced into thin strips; 1 tablespoon brown sugar; 1 tablespoon low sodium soy sauce; 1 teaspoon Dijon mustard; 12 napa cabbage leaves, white center ribs removed; 2 tablespoons mayonnaise; 3 tablespoons plain Greek style nonfat yogurt; 4 cooked chicken breast halves (about 5 ounces each), sliced into ½ inch thick slices; 4 whole wheat wrap breads (about 9 inches in diameter); ¼ teaspoon Thai style chili sauce (such as Sriracha), optional; ½ teaspoon toasted sesame oil