Preheat your oven to 350°F (175°C).
In a large pot, steam the broccoli florets until tender, about 5 minutes.
In a mixing bowl, combine cream of mushroom soup, milk, garlic powder, onion powder, salt, and pepper.
Add the steamed broccoli to the soup mixture and stir until well coated.
Fold in 1 cup of shredded cheddar cheese, mixing evenly.
Transfer the broccoli mixture into a greased 9x13 inch baking dish.
In a small bowl, mix breadcrumbs with olive oil and Parmesan cheese.
Sprinkle the breadcrumb mixture evenly over the casserole.
Top with the remaining 1 cup of shredded cheddar cheese.
Bake in the preheated oven for 25-30 minutes, until bubbly and golden brown.