Combine Hellmann's® or Best Foods® Mayonnaise Dressing with Olive Oil, garlic, Parmesan cheese and oregano in small bowl. Arrange pizza crust on cookie sheet. Spread with Mayonnaise Dressing mixture, then top with tomatoes. Bake 12 minutes or until tomatoes are tender.
Top with spinach, onion and feta. Bake an additional 5 minutes or until cheese is melted.