Creating this flavorful Cheesy Asparagus Casserole is as easy as following these simple steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish with olive oil.
2. Blanch the Asparagus: In a large pot, bring salted water to a boil. Add the asparagus and cook for about 2-3 minutes. Drain and place in ice water to stop cooking. Drain again and set aside.
3. Mix the Cheeses: In a mixing bowl, combine the shredded cheddar cheese, sour cream, heavy cream, garlic powder, onion powder, salt, and black pepper. Stir until well integrated.
4. Combine Ingredients: Add the blanched asparagus to the cheese mixture and stir gently until the asparagus is evenly coated.
5. Transfer to Baking Dish: Pour the mixture into the prepared baking dish, spreading it evenly.
6. Prepare Breadcrumb Topping: In a small bowl, mix together the breadcrumbs and grated Parmesan cheese. Sprinkle the mixture evenly over the asparagus and cheese combination.
7. Bake: Place the casserole in the preheated oven and bake for 30-35 minutes, or until the top is golden brown and bubbly.
8. Cool Slightly: Once baked, remove the casserole from the oven and let it cool for about 5-10 minutes before serving.

These straightforward steps will guide you in effortlessly making an amazing Cheesy Asparagus Casserole that will impress everyone!