Add heavy cream and bring to a simmer. Cook for 2-3 minutes until the cream thickens slightly.
Stir in parmesan cheese, salt, pepper, and red pepper flakes, if using. Continue to stir until the cheese melts and the sauce becomes smooth.
Add the broccoli florets to the skillet, tossing to coat in the creamy sauce. Cook for an additional 3-4 minutes, until the broccoli is tender and heated through.
Top with crumbled bacon and serve immediately.
Notes
If you prefer a lighter version, you can substitute the heavy cream with half-and-half or milk.
For extra flavor, sprinkle with additional parmesan cheese before serving.
Broccoli can be blanched before adding to the skillet for a brighter color and more tender texture.