Preheat oven to 425°. In a large skillet, heat oil over medium-high heat. Add onion; cook and stir 6-8 minutes or until tender. Stir in turkey, thyme, sage, salt and pepper., Place crust on an ungreased 12-in. pizza pan or baking sheet. Top with cranberry sauce, turkey mixture, sweet potato, cheeses and cranberries; sprinkle with rosemary. Bake 10-15 minutes or until cheese is melted.