Ingredients

1 teaspoon salt

1/2 teaspoon freshly ground black pepper

1 pound boneless, skinless chicken breast (2 small whole breasts)

3/4 cup plain nonfat yogurt

1 tablespoon Dijon mustard

2 tablespoons snipped fresh chives

1 tablespoon chopped fresh tarragon

1 Granny Smith apple

Juice of 1/2 lemon

1 cup finely diced fennel

1/2 cup finely diced celery

2 cups halved red seedless grapes

6 slices pumpernickel bread

1 bunch watercress, tough stems removed

Olive-oil, cooking spray

Preparation

Combine salt and pepper in a small bowl. Heat a large skillet over medium-high heat. Coat with cooking spray. Sprinkle chicken with half of the salt-pepper mixture; place in the skillet. Reduce heat to medium; cover. Cook until chicken is cooked through, about 12 minutes, flipping halfway through. Remove from the pan; set aside.

In a bowl, combine yogurt, mustard, chives, tarragon, and remaining salt-pepper mixture. Core apple, and cut into 1/4-inch dice. Place apple in a medium bowl with lemon juice, and toss to combine. Add fennel, celery, and grapes. Cut reserved chicken into 1/2-inch pieces. Add to salad with yogurt dressing; stir to combine. Divide salad among 6 slices pumpernickel bread, and sprinkle with watercress.