Wash and peel the eddoes if you prefer, then cut them in half. You can also steam them with the skin on—just scrub thoroughly before cutting.
Trim the ends off the ripe (but firm) plantain, then cut it into 2–3 inch pieces. Slice the skin lengthwise the thickness of the peel to help it open during steaming.
Peel the taro, discard the skin, and slice into 1 1/2 inch rounds. Rinse well with cool water.
Arrange the provisions in the steamer, placing the denser eddoes on the bottom layer and the softer plantain pieces on top, along with the Taro pieces, which are notorious for cooking quickly when boiled.
Steam for 35–45 minutes. Test doneness by inserting a knife through the thickest part of an eddoe or taro—it should slide in easily.
Once cooked, let the plantain cool slightly, then peel off the loosened skin.
Serve warm as a wholesome side or main.