Chop the cauliflower into florets. Toss it with the garlic powder, salt, and 1/3 cup buffalo wing sauce.
Spread the cauliflower out onto a baking sheet and roast until just tender, approximately 10 minutes. Remove from oven and place your pizza stone or a large baking sheet in the oven to heat.
Take your pizza crust (par-baked, see note) and brush some olive oil along the crust edge. Sprinkle with garlic powder, salt, and/or Parmesan as desired.
Spread approximately 1/3 cup additional buffalo wing sauce on the crust. Use more or less as needed. Sprinkle the cheese on top of the pizza.
Add the red onion and cauliflower across the top of the pizza.
Place the pizza on your baking sheet or pizza stone and cook until the cheese is melted, approximately 10 minutes.
Top with your desired toppings such as sour cream, blue cheese crumbles, and green onions. Serve immediately.
Notes
Get the recipe for Ranch Pizza Crust here. You can use any pizza dough or crust for this recipe.The times for this recipe are based on already having dough/crust ready to go. If you are making dough from scratch, it will take longer.A par-baked crust is one that is not raw and has been just barely baked.The more buffalo sauce you use, the spicier it will become. Heat level also depends on your exact brand. I found the Frank's brand to have a good kick to it that built to spicy by the end of one slice. Use extra cheese and sour cream to cut through the heat as needed.