2 containers (8 oz. each) Dannon strawberry yogurt
1/2 c. crushed strawberries (optional)
1 container (8 oz or 9 oz.) Cool Whip
1 Graham cracker ready crust

Thoroughly combine crushed fruit and yogurt in a bowl. Fold in the Cool Whip, blending well. Spoon into crust and freeze about 4 hours. Remove from freezer and place in refrigerator 30 minutes (or longer for softer texture), before serving. Store any leftover pie in freezer.