Before the pig or turkey is placed in the imu,chopped pieces ofbanana plant are spread over the hot rocks. The white, juicy lining ofthis plant makes a lot of steam, but it can also cause a bitter taste, so tileaves are layered over it. Finally, the pig or turkey is placed in the imu,along with sweet potatoes, pineapple, plantain, vegetables, and evenfresh fish—all wrapped in tileaves.