Peel chayotes, halve, discard seeds and chop. Steam over boiling, salted water about 20 minutes or until tender. Cool. In a jar with a tight-fitting lid, shake together olive oil, cilantro, vinegar, salt and pepper.
Cut avocado in half lengthwise, discard seed and slice into a serving bowl. Immediately toss with the olive oil dressing. Toss in chayotes, cheese and olives.
Serves 4. |