1-Preheat oven to 325F (or 350F is: Preheat oven to 325F (or 350F is that’s what’s called for on your box of brownie mix), line a 9×13-inch pan with foil for easier cleanup, spray with cooking spray; set aside.
2-Mix up the brownie batter according to: Mix up the brownie batter according to the ingredients called for on the package (egg(s), oil, water), turn the batter out into prepared pan, and bake for about 26 to 30 minutes, or until brownies are cooked through; set brownies aside to cool.
3-To a large bowl, add the cream: To a large bowl, add the cream cheese, confectioners’ sugar, and beat on medium speed with a handheld electric mixer until smooth and combined.
4-Add half the tub of whipped topping: Add half the tub of whipped topping and beat to incorporate until smooth and combined.
5-Turn the cream cheese mixture out over: Turn the cream cheese mixture out over the brownies in an even flat layer, smoothing lightly with a spatula as necessary.
6-Evenly sprinkle half the chopped Oreos over: Evenly sprinkle half the chopped Oreos over the cream cheese layer; set pan aside.
7-To a large bowl (same one from: To a large bowl (same one from the cream cheese and whipped topping layer is fine, just wipe it out with a paper towel), add the chocolate pudding mix, milk, and beat on medium-high speed with a handheld electric mixer for 2 minutes. Allow pudding to rest for about 5 minutes; it will thicken up dramatically.
8-Evenly turn the pudding out over the: Evenly turn the pudding out over the Oreo layer.
9-Evenly add the remaining half tub of: Evenly add the remaining half tub of whipped topping.
10-Evenly sprinkle the remaining half of the: Evenly sprinkle the remaining half of the Oreos. Cover and refrigerate for at least 90 minutes, or until chilled and set.