1 pkg. (8 oz.) cream cheese, softened
1/3 c. sugar
1 c. (1/2 pt. 8 oz.) sour cream
2 tsp. vanilla
1 (8 oz.) tub Cool Whip, thawed
1 Keebler ready crust

Beat cheese until smooth, gradually beat in sugar. Blend in sour cream and vanilla. Fold in whipped topping. Blending well. Spoon into crust. Chill until set, at least 4 hours. Garnish with fresh strawberries if desired.