In a small bowl combine dressing, jalapeno, and orange peel. Reserve all but 1 tablespoon dressing mixture. Rinse chicken; pat dry. Brush the chicken, orange slices, and sweet pepper with the 1 tablespoon dressing mixture. Grill the chicken, orange slices, and sweet pepper on the lightly greased rack of an uncovered grill directly over medium heat for 12 to 15 minutes or until chicken is tender and no longer pink, turning once. Transfer the chicken, orange slices, and sweet pepper to a cutting board; cool slightly. Cut chicken and sweet pepper into bite-size strips; quarter the orange slices.
Meanwhile, in a large salad bowl toss together the greens and jicama. Add the chicken, oranges, and sweet pepper to the salad bowl; drizzle with the reserved dressing mixture. Season to taste with black pepper. Makes 4 servings.