Cook your pasta according to package directions.
While your pasta cooks: Melt the butter in a medium saucepan over medium-high heat. Add the broccoli, garlic powder, ¼ tsp salt, and ¼ tsp pepper. Stir to combine. Add the heavy cream and bring to a boil, stirring often. Reduce heat to medium-low and simmer, stirring often, about 5 minutes. Take the pan off the heat and stir in the Parmesan cheese until melted, season with salt and pepper to taste.
Drain your pasta and serve topped with the sauce.
