Avocado and Tuna Salad Filling

Ingredients

 * 2 avocados - not really very ripe
 * 1 can tuna (9¼ oz - I use in water-packed.)
 * 1 tbsp lemon juice
 * 2 tbsp mayonnaise (it can be low calorie.)
 * ½ teas dry mustard
 * pinch of salt

Dressing

 * juice from 1 lemon
 * 1 small garlic clove, crushed very fine
 * pinch of salt
 * few chopped parsley for decoration

Dressing

 * 1) Put in a shaker and shake very well.
 * 2) Taste; add more salt if needed.

Filling

 * 1) Drain the tuna.
 * 2) With the fork break the tuna meat, and add all other ingredients.
 * 3) Mix it well till it becomes really fine.
 * 4) Peel avocado, (I peel in its length), cut in 1 cm thick rounds and very carefully slide it over its pit and arrange it over a nice serving plate.
 * 5) With a teaspoon, fill the avocado in its center.
 * 6) Sprinkle over all with the dressing and toss over the chopped parsley.
 * 7) Cover with nylon seal wrap, and keep in refrigerator till you serve.