Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     3/4  pound         swordfish -- in one piece
     1/3  cup           cider vinegar
   1      large         clove garlic -- minced
     1/2  teaspoon      salt
     1/2  tablespoon    freshly ground black pepper
     1/2  teaspoon      sugar
     1/2                avocado -- peeled
     2/3  cup           olive oil
   3                    green onions, white and light green parts -- only
                         -- finely chopped
   1      small         white onion, sliced paper thin
                         -- soaked in ice water 
   3      cups          spinach leaves -- well washed
   1      head          butter lettuce*
   1      pint          cherry tomatoes -- halved

Preparation:

* Remove and discard the outer leaves and tear the inner leaves into bite-sized pieces. Prepare a smoker for hot smoking by soaking and then igniting 3 large hardwood chunks, and regulating the temperature so that it will remain between 240 and 250F. Smoke the fish for 1 to 1 1/4 hours, or until the flesh is flaky and cooked through. Shred the flesh and refrigerate until ready to serve. In a blender, combine the vinegar, garlic, salt, pepper, sugar, avocado, and olive oil and blend for 1 minute, until completely smooth and emulsified. Transfer to a glass bowl, stir in the green onions, and taste for seasoning. Cover with plastic wrap and refrigerate for 2 hours. When ready to serve, drain the onion slices, pat them dry, and separate them into rings. In a large mixing bowl, toss the spinach, lettuce, and tomatoes, together gently. Pour on enough dressing to coat, and toss again just to mix. Place a mound of the salad on each of 6 plates and scatter about 2 ounces of the shredded swordfish over the salad. Drape a few onion rings over the top and serve.