Combine 1 package (4-serving size) Jell-O brand vanilla pudding and pie filling, 1 package (3 ounce) Jell-O brand gelatin strawberry flavor, 2 cups water, and 1 teaspoon lemon juice in saucepan. Cook and stir over medium heat until mixture comes to a boil.

Pour into bowl and chill until thickened. To hasten chilling, place bowl of pudding mixture in larger bowl of ice and water; stir until thickened. Blend in 1 1/2 cups prepared Dream Whip whipped topping; stir in 1 cup sliced strawberries.

Pour into cooled baked 9-inch pie shell; chill until set, 1 to 2 hours. Garnish with additional whipped topping and strawberries.