Cook spinach in oiled pan for a min or 2 set aside
Mix the heavy cream, grated Parmesan cheese, butter. garlic powder, salt and pepper in a medium size pot on medium high. Once the mixture starts to boil turn the heat down to medium and stir until the sauce thickens.
Add the sauce to the pizza then add your cheese and toppings.
You can find my stove top pizza recipe here: https://whiskitrealgud.com/2015/05/delicious-and-easy-stove-top-pizza/