Instructions: Drain tuna, reserving 1/3 Cup oil for dressing (add additional salad oil, if necessary).

Flake tuna or cut into chunks; combine with grapefruit and orange sections, celery and walnut pieces; reserve.

Peel avocado and remove pit; cut into small pieces.

In small bowl, mash avocado with lemon juice. Add reserved tuna oil and all remaining ingredients except salad greens; beat together until smooth and creamy. Or combine in electric blender container and blend on high speed mixture is smooth.

Line salad bowl with salad greens.

Add reserved tuna-citrus mixture; serve with avocado dressing.

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