Preparation

Set 4 dinner plates in the refrigerator. In a medium bowl, whisk together all ingredients for the dressing. Spoon 2 tablespoons of dressing into a large skillet and set the rest aside. Over medium-low heat, add chicken and orange juice to skillet. Bring to a simmer, reduce heat to low and cover the pan. Cook chicken for 6 minutes, then turn it over and cook for another 6 minutes. Shut off heat, remove lid, and let cool in the pan for 15 minutes. Meanwhile, cut off tops and bottoms of remaining 3 oranges with a sharp paring knife; peel the oranges, removing all the white pith, and slice into rounds. In a large bowl, toss the fennel and lettuce with all but 2 tablespoons of the reserved dressing. Divide the lettuce mixture among the 4 chilled dinner plates. Slice the chicken into thin strips. Arrange the chicken, orange sections and onion slices on top of lettuce. Drizzle with remaining dressing, sprinkle with raspberries and serve.