Coat a cast iron skillet with a non-stick spray. Lay your dinner rolls in a circle around the outer edge of the skillet, and place bowl in the center. Cover with plastic wrap, and set aside for about an hour or until the rolls double in size.
Pre-heat oven to 350˚.
In a pan/skillet heat a couple of Tablespoons of olive oil. Add in spinach and artichoke heats, cooking until spinach is wilted. Add in sour cream, mayonnaise, cream cheese, garlic powder, mozzarella and half of parmesan cheese. constantly stirring until cheese melts, salt and pepper to taste.
Remove the bowl from the center of your rolls and spoon dip into the center of the pan. Mix red pepper flakes into melted butter and brush across the top of the buns. Sprinkle the remaining parmesan over everything and bake for about 20 to 25 minutes or until the rolls are a golden brown.