1 (8 oz.) Philly cream cheese
1/3 c. sugar
1 c. sour cream
8-9 oz. Cool Whip
1 tsp. vanilla
1 pkg. lemon jello

Cream cheese, 1/3 cup sugar, and jello. Add sour cream and vanilla; mix well. Add Cool Whip and mix.

Put into graham cracker crust. Chill for 2 hours before serving.

Note: This can be made with low-cal ingredients and sugar-free jello.