Bring A Large Pot Of Lightly Salted Water To A Boil. Add Pasta And Cook For 8 To 10 Minutes Or Until Al Dente; Drain. Meanwhile, Heat Oil In A Large Skillet Over Medium Heat. Saute Garlic Until It Starts To Brown. Stir In A Handful Of Grated Zucchini; Cook For 1 Minute And Then Add The Rest Of The Zucchini. Cook For 3 Minutes. Toss Pasta With Zucchini, Cheese And Yogurt. Season With Salt And Pepper. Mix Well And Serve.