Begin by softening the cream cheese at room temperature for about 30 minutes. While waiting, blanch your spinach in boiling water for 1-2 minutes until slightly wilted, then immediately plunge into ice water. Drain and squeeze out all excess water thoroughly, then chop the spinach finely.
Cut the softened cream cheese into small cubes and mash them. For a smoother texture, press through a fine-mesh strainer. Mix in the heavy cream until completely smooth, then stir in the minced garlic, grated cheese, and chopped spinach. Season with salt and pepper to taste. Set this spinach mixture aside.
Start the Alfredo sauce by combining butter, heavy cream, and cream cheese in a medium saucepan over medium heat (175°C). Whisk until completely melted. Add salt, pepper, Italian herbs, garlic powder, and minced garlic. Let it simmer for 3-5 minutes until thickened, then remove from heat to cool slightly.
Preheat your oven to 200°C. If using a pizza stone, place it in the oven while preheating. On a floured surface, stretch your pizza dough into a 12-inch circle. Brush the edges with olive oil.
Spread the cooled Alfredo sauce evenly across the dough, leaving a small border for the crust. Sprinkle generously with mozzarella cheese. Using a spoon, place 4-5 dollops of your spinach mixture evenly across the pizza, creating signature mounds.
Slide your pizza onto the preheated stone or baking sheet and bake for 15-25 minutes, or until the crust turns golden brown and the cheese melts completely. Keep an eye on it during the last 5 minutes to prevent burning.
Let the pizza rest for 3 minutes after removing from the oven. This allows the cheese to set slightly and makes it easier to slice. Cut into portions and serve while hot and creamy.
For storage, let cool completely and refrigerate leftovers in an airtight container for up to 3 days. Reheat in a 175°C oven for 5-7 minutes until hot and bubbly.