Creating Broccoli-Cheese Casserole is easy when you follow these steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Prepare Broccoli: Steam or blanch the fresh broccoli florets in boiling water for about 2-3 minutes until slightly tender. Drain and set aside.
3. Mix Ingredients: In a large bowl, combine the cream of mushroom soup, sour cream, milk, melted butter, garlic powder, onion powder, and half of the shredded cheese. Stir until well blended.
4. Add Broccoli: Fold in the steamed broccoli florets, making sure they are completely coated with the creamy mixture.
5. Season: Add salt and pepper to taste, mixing well.
6. Transfer to Baking Dish: Pour the mixture into a greased 9×13-inch baking dish, spreading evenly.
7. Add Breadcrumbs: If using, sprinkle breadcrumbs evenly over the top for added crunch.
8. Top with Cheese: Sprinkle the remaining shredded cheddar cheese over the casserole.
9. Bake: Place in the preheated oven. Bake for 30–35 minutes or until hot and bubbly, and the top is golden brown.
10. Cool: Remove from the oven and let cool for 10 minutes before serving.

These steps will guide you to make a delightful Broccoli-Cheese Casserole that is sure to please everyone at your table.