Separate Oreos by twisting to remove the cookie halves from the cream filling. Set aside the cream filling.

Crush the Oreo halves in a zip-top bag using a rolling pin until they form fine crumbs.

In a mixing bowl, add a splash of milk to the cookie crumbs and mix until a thick, dough-like consistency forms.

Spread the cookie mixture on a sheet of plastic wrap, maintaining a rectangle shape about 1/2 inch thick. Spread the cream filling evenly over the top.

Roll tightly using the plastic wrap into a log shape, then slice into 1-inch thick pieces resembling sushi rolls.

Arrange the cut sushi pieces on a plate and serve with optional toppings.