Creating the Spicy Pierogi Pizza is simple and enjoyable. Follow these steps for a delicious result:

1. Preheat Oven: Preheat your oven to 425°F (220°C).
2. Prepare the Crust: If using a store-bought crust, roll it out on a pizza stone or baking sheet.
3. Mix the Filling: In a bowl, combine the mashed potatoes, sour cream, garlic powder, smoked paprika, salt, and pepper until smooth.
4. Spread the Filling: Evenly spread the potato mixture over the pizza crust, leaving a small border around the edges.
5. Add Toppings: Sprinkle the sautéed onions, mozzarella cheese, and crispy bacon bits (if using) over the potato filling.
6. Add Spice: Sprinkle crushed red pepper flakes over the top, adjusting the amount to your desired spice level.
7. Bake the Pizza: Place the pizza in the preheated oven and bake for 25-30 minutes or until the crust is golden brown and the cheese is bubbly.
8. Cool Slightly: Once baked, remove the pizza from the oven and allow it to cool for about 5-10 minutes.
9. Garnish: Before serving, sprinkle fresh chives or green onions on top for added freshness and color.

These steps will guide you in creating a Spicy Pierogi Pizza that is not only delicious but also visually appealing.