Easy No Bake Cheesecake
["1 graham cracker crust", "1 (8 oz.) pkg. cream cheese", "1/3 c. sugar", "1 c. (1/2 pt.) sour cream", "2 tsp. vanilla", "1 (8 oz.) container frozen whipped topping, thawed", "fresh strawberries (for garnish, optional)"]
["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 berries, if desired."]
["graham cracker crust", "cream cheese", "sugar", "sour cream", "vanilla", "frozen whipped topping", "fresh strawberries"]