Using a floured rolling pin, roll the dough from the center to the edges until the circle is about ½ inch thick or to your likeness. Transfer to a greased or oiled pizza or baking sheet.
Microwave your sweet potato for 7 minutes. While it is microwaving, sautee the mushrooms in olive oil and garlic. Slowly add in kale and peppers and turn heat to low.
Coat dough with tomato sauce and add toppings, saving the cheese and/or nutritional yeast for last.
Bake for 20-25 minutes and let cool for 10 minutes before serving.
Notes
To make a completely vegan sweet potato pizza, use nutritoinal yeast and omit the cheese.