Use brownies, cut into 1 inch squares, crushed OREOs, cream cheese mousse and OREO pudding. Prepare all ingredients. Get a trifle bowl and put 1/3 of the brownies on the bottom, then cover with 1/3 of the cream cheese mousse then 1/3 of the OREOs. Cover OREOs with 1/2 the OREO pudding. Repeat 2 more times, the last time ending with crushed OREOs.