Arrange banana slices in bottom of crust. Completely dissolve gelatin in boilin g water. Combine cold water and ice cubes to make 1.25 cups. Add to gelatin, s tirring until slightly thickened. Remove any unmelted ice. Using wire whisk, bl end in whipped topping; then whip until smooth. Fold in strawberries. Chill unt il mixture mounds. Spoon over banana in pie crust. Chill about 2 hours. Garnish with additional strawberries and banana slices, if desired.