LINE 9x5-inch loaf pan with plastic wrap. Microwave chocolate in large microwaveable bowl on MEDIUM 2 min. or until chocolate is almost melted; stir until completely melted. Stir in peanut butter.
ADD cereal; mix well. Press onto bottom of prepared pan. Refrigerate 10 min.
UNMOLD dessert onto cutting board; discard plastic wrap. Cut dessert into 12 slices; arrange on platter. Garnish with Cool Whip, strawberries and nuts.
