Pasta Bravo

Greek Salad for lunch at $7.99 from a local Italain eatery in Commerce, CA.
Lettuce, tomatoes, onions, olives, hearts of palm, feta cheese in a light vinagraitte dressing. With chicken and 2 small garlic buns.

Filling, healthy and delicious. Now, how do I replicate the dressing? Any suggestions?

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