Preheat oven to 500 degrees.
Roll out pizza dough. Mix together sweet potatoes, 1/2 tsp rosemary, and garlic. Spread on dough, leaving about 1/2 inch around for the crust.
In a small bowl, combine garlic powder, salt, 1/4 tsp rosemary, and olive oil. Use a pastry brush to brush the mixture on the crust.
Top pizza with kale and parmesan and remaining rosemary. Bake for 10 minutes. Brush crust again with oil mixture. Slice and serve.