Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   7      ounces        canned tuna -- drained and flaked
   8      ounces        jarred taco sauce
     1/2  teaspoon      garlic powder
     1/2  cup           shredded lettuce
   4                    taco shells
   1      cup           shredded cheddar cheese
   1      large         tomato -- chopped
   1                    red onion -- thinly sliced
     1/4  cup           chopped black olives
   1                    half avocado -- sliced into 4
                        -- pieces

Preparation:

In bowl, combine tuna, taco sauce and garlic powder. Heat taco shells in oven. Divide lettuce into bottom of each taco shell. Place tuna mixture over lettuce. Place avocado slice over each mixture. Place onion slice over avocado. Sprinkle each taco with cheese and black olives. Approximately 5 minutes.