Place the sweet potato slices in a bowl and toss with 1/2 tablespoon of olive oil. Season with salt and pepper. Place on baking sheet and bake for 20 mins. Remove from oven.
Top CAULIPOWER pizza crust with mozzarella cheese, sweet potato slices, kale, red onion, rosemary, salt, pepper, and a drizzle of olive oil and balsamic vinegar. Bake for 13-15 mins.