Fill a medium saucepan half full with water and bring to a boil.
Peel and dice plantains and boil to al dente or slightly fork tender. Pour into a strainer and run cold water over top to speed cooling. Move platanos to a medium bowl.
Chop remaining vegetables and add to the platanos. Add the juice of 6 lemons, salt, and pepper and stir to combine.
Refrigerate covered and allow to marinate, stirring every hour or so, for at least 3 hours. Serve cold with saltines or soda crackers.
Recipe by Jellibean Journals at https://jellibeanjournals.com/ceviche-de-platano-verde/