Mix cake mixes and bake according to package directions.
When baked, allow cakes to cool completely.
Use cake slicer/leveler to even out top of each cake square.
Mix cream cheese, butter, vanilla, and powdered sugar to make frosting.
Divide frosting in half.
Add Oreos to half of frosting. Mix well.
Add Oreo cream cheese frosting to top of one cake layer and spread evenly.
Top with the second cake layer, so you now have a double-layer cake.
Use a little bit of plain cream cheese frosting to smooth on the top sides of the cake.
Add sliced/chunked strawberries to rest of frosting.
Smooth strawberry cream cheese frosting onto top of cake.
Keep chilled in refrigerator. Serve and enjoy!