This is a fantastic switch from our normal pepperoni and ham pizza. It is meatless as is, but it is also great with shredded chicken added to it. I add it in the first step when I do decide to add it.
1/2 cup mayonnaise
4 cloves garlic, minced
1 cup crumbled feta cheese, divided
1 (12 inch) pre-baked Italian pizza crust
1/2 cup oil-packed sun-dried tomatoes, coarsely chopped
1 tablespoon oil from the sun-dried tomatoes
1/4 cup pitted kalamata olives, coarsely chopped
1 teaspoon dried oregano
2 cups baby spinach leaves
1/2 small red onion, halved and thinly sliced
Adjust oven rack to lowest position, and heat oven to 450 degrees. Mix mayonnaise, garlic and 1/2 cup feta in a small bowl. Place pizza crust on a cookie sheet; spread mayonnaise mixture over pizza, then top with tomatoes, olives and oregano (and chicken if using). Bake until heated through and crisp, about 10 minutes.
Toss spinach and onion with the 1 Tbsp. sun-dried tomato oil. Top hot pizza with spinach mixture and remaining 1/2 cup feta cheese. Return to oven and bake until cheese melts, about 2 minutes longer. Cut into 6 slices and serve.