Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     1/4  pound         smoked mackerel or other smoked fish
   1      package       cream cheese -- (3 ounces)
   2      teaspoons     lemon juice
   2      teaspoons     grated onion
     1/4  teaspoon      salt
  30      small         cherry tomatoes
                        salad greens

Preparation:

Remove skin and bones from fish. Flake the fish. Cream the cheese and seasonings. Add fish and mix thoroughly. Slice stem ends off the tomatoes. Hollow out centers carefully. Fill with fish mixture. Chill. Serve on salad greens.