Preparation:
Halve avocado and remove seeds. Scoop out pulp and dice. Put shell with lemon juice and set aside. Peel and chop tomatoes. Mix all remaining ingredients except shrimp and watercress. Pour over tomato and avocado pieces, mix carefully. Fold in shrimp. Pile mixture in avocado shells, top with water cress, sprigs and chill. Makes 4 servings.
Ingredients