To prepare the chicken, place chicken in a medium bowl. Pour concentrate over meat; sprinkle with pepper. Toss to coat. Heat a greased skillet over medium heat; add chicken and cook until chicken is done and the liquid starts to thicken and evaporate. Set aside.
Arrange lettuce on two salad plates; top with peas. Divide the chicken onto the plates; sprinkle the berries and nuts on top. Drizzle each salad with ¼ cup of the dressing. Serve immediately.