Make batter for brownies according to instructions.
Pour half of the batter into a 9 x13 pan. Line the pan with oreos. Then pour rest of batter on top. Bake brownies according to brownie mix/recipe instructions.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.