1Heat oven to 425°F. Spray cookie sheet with cooking spray. In small bowl, mix sugar and lemon peel.
2In 12-inch skillet, heat preserves and water over medium heat until preserves are melted. Stir in 1 tablespoon of the sugar mixture, the lemon juice, strawberries and blueberries. Cook 1 minute, stirring constantly, until sugar is dissolved. Remove from heat; set aside.
3In medium bowl, stir Bisquick mix, milk and remaining sugar mixture just until dry ingredients are moistened. On lightly floured surface, press dough to 1/2-inch thickness. Cut dough with 2 1/2-inch round cutter. Place rounds on cookie sheet.
4Bake 10 to 12 minutes or until golden. Split shortcakes in half; spoon berry mixture evenly over shortcake bottoms. Top each with 1 tablespoon whipped topping; cover with shortcake tops.