Preheat oven to 350 degrees.

Add the broccoli to a large microwave safe bowl along with 2 tablespoons of water. Cover tightly with plastic wrap and microwave for 2 minutes. Let sit, covered, for 2 minutes.

While broccoli is steaming, slice the sausage into thin rounds and add to a hot skillet over medium heat. Cook, stirring occasionally, until sausage is browned on the outside.

Add the cream cheese, mayonnaise, cheddar, garlic powder, salt, and pepper to a small bowl and mix well to combine.

Stir the cream cheese mixture and browned sausage into the steamed broccoli until well combined.

Transfer broccoli to an 8x8 baking dish and sprinkle the Parmesan over the top.

Bake for 10 minutes.