Preheat oven according to pizza crust package instructions.
In a large pan under medium high heat, saute butternut squash until not-quite-firm with a pinch of salt, brown sugar and olive oil for about 10 minutes. Add leeks and balsamic vinegar and cook about 10 more minutes.
Spread ricotta over pizza crust and sprinkle garlic powder in a layer on top of the pizza, to taste. Add butternut squash and leeks, and top with prosciutto, rosemary, and salt, pepper and parmesan to taste.
Cook until crust is golden (about 15 minutes, depending on package instructions). Drizzle with hot honey and enjoy while hot!