Yogurt and zucchini dip

3 - 4 tablespoons Sitia Extra Virgin Olive Oil
1 lb zucchinis
2/3 lb strained yogurt
2 mashed garlic cloves
2 tablespoons finely chopped dill or mint
1 tablespoon lemon juice
5 - 6 black olives
salt and pepper

Wash and cut zucchinis in pieces. Boil in salted water until tender and drain well. (It is easier to drain them if placed in a cloth and squeezed.) Put them in a salad bowl and mash completely with a fork. Add yogurt, garlic, dill, olive oil, lemon juice, salt and pepper and combine well. Garnish with olives.