Over the last couple years, my two oldest Sprouts have been privileged to go on several volunteer trips (mission outreach/school-activity/medical-service) to South America; Ecuador, Mexico, Chile and Peru. (And yes, they're going again this spring!)
As you might imagine, finding vegetarian foods was sometimes a challenge, though the groups always had other vegetarian members as , as well as very supportive leaders, guides and translators.
Cut plantains crosswise into 1-inch-thick pieces and then slit down the side of each piece. Pry skin from pieces. It is messy!
Into a bowl of warm salted water dip flattened plantains, 1 at a time, and drain them well on paper towels.