HEAT oven to 450ºF.
PLACE pizza crust on baking sheet. Mix spinach, 1/2 cup Gorgonzola cheese, oil and garlic powder with wooden spoon until mixture forms paste; spread onto crust.
TOP with mozzarella, tomato slices and remaining Gorgonzola.
BAKE 15 min. or until cheeses are melted and crust is golden brown.