2 containers (8 oz. each) vanilla or plain yogurt
3 1/2 c. Cool Whip, thawed
2 c. sliced or chopped strawberries, sweetened to taste
1 (6 oz.) graham cracker crust

Fold yogurt into whipped topping and blend well. Fold in strawberries. Spoon into crust. Freeze until firm, approximately 4 hours. Garnish with additional whole strawberries, if desired. Let stand at room temperature 10 minutes before serving. Store leftover pie in freezer.