In a large bowl, combine the cocoa powder and oil. Add the sugar and milk; mix with a spoon until smooth.
Add the cream cheese and beat with an electric mixer on medium speed until smooth. With a spoon, fold in the whipped topping until well blended.
Pour into the pie crust, cover loosely, and freeze for at least 4 hours, or until firm.
This recipe yields 8 servings. Serving size: 1 wedge.
Exchanges Per Serving: 2 1/2 Carbohydrate, 2 Fat.
Nutrition Facts: Calories 302; Calories from Fat 136; Total Fat 15g; Saturated Fat 8g; Cholesterol 10mg; Sodium 170mg; Carbohydrate 35g; Dietary Fiber 1g; Sugars 19g; Protein 3g.