Begin by preheating your oven to 500°F (260°C). If your pizza dough has been refrigerated, allow it to come to room temperature—this makes it easier to work with. Let it rest on the counter for 30 minutes or more, depending on your timing.
Lightly flour your work surface and roll the dough out into a 10-inch circle or large enough to fit the base of your skillet. If the dough is springy and keeps shrinking, let it relax for 10 more minutes to make shaping easier.
Place a 10-inch cast iron skillet over medium-high heat and allow it to heat for about 2 minutes. Once hot, sprinkle a generous layer of cornmeal or flour across the bottom to prevent sticking and to create a crispy crust.
Gently lay the rolled dough into the skillet, pressing it to fit evenly and reach the edges. Drizzle one tablespoon of olive oil over the top and spread it lightly with the back of a spoon or a brush. Let the dough cook undisturbed for 2–3 minutes until it begins to puff slightly and the underside turns golden—adjust heat if it browns too quickly.
Remove the skillet from the heat and quickly spread the tomato paste evenly across the dough. Season it with garlic powder, salt, and pepper to your taste. Arrange the spicy soppressata over the sauce, followed by the torn or sliced fresh mozzarella and a generous layer of grated whole milk mozzarella. Finish with a light drizzle of the remaining olive oil and a sprinkle of Parmesan cheese.
Transfer the skillet carefully to the preheated oven and bake for 10–12 minutes, or until the crust is deeply golden and the cheese is melted and bubbling with slightly crisped edges.
While the pizza bakes, prepare the spicy honey glaze. In a small bowl, stir together the honey, crushed red pepper flakes, and a splash of water until the mixture thins out enough to brush easily.
Once the pizza is done, remove it from the oven and allow it to rest for a few minutes. Use a pastry brush to coat the crust with the spicy honey glaze, infusing it with a sweet heat that complements the rich, salty toppings.
Carefully lift the pizza out of the skillet and onto a cutting board. Slice and serve immediately for best results.