Ingredients

Instructions

  1. Using a small bowl, mix olive oil and red wine vinegar together.
  2. Place onions in mixture and let marinate while you prepare the rest of the ingredients.
  3. When ready, set out bottom slice of bread, drizzle thinly with the oil-vinegar mixture, and layer onions.
  4. Follow with capers and olives, tuna, tomato, leaf green, drizzled lightly with oil-vinegar mixture and top slice of bread.
  5. Squish everything together and let sit for a few minutes while you clean up, bring plenty of napkins, this is one messy sandwich!