Ensalada de Aguacate

Ingredients

• watercress or lettuce leaves

  the platter, optional
  1 unit
• Florida avocados or 4 Haas peeled

  halved lengthwise and sliced
  2 large
• onion

  sliced vertically
  1 small
• salt

  to taste
  1 unit
• fresh ground black pepper
  1 unit
• pure Spanish olive oil or extra virgin olive oil
  ½ cup
• white vinegar or fresh lemon juice
  3 tbsp
• parsley

  finely chopped
  1 tsp