Creating Sausage, Egg & Cream Cheese Hash Brown Breakfast Casserole is easy when you follow these steps:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C).
2. Cook the Sausage: In a skillet over medium heat, cook the breakfast sausage until browned and fully cooked. Drain excess grease if necessary.
3. Mix Cream Cheese: In a large mixing bowl, beat the softened cream cheese until smooth. This will help it blend seamlessly with the eggs.
4. Add Eggs and Milk: Whisk in the eggs and milk until fully combined. Ensure the mixture is smooth and free of lumps.
5. Season: Add garlic powder, onion powder, salt, and pepper to the egg mixture. Stir well to combine all seasonings.
6. Combine Hash Browns and Sausage: In a separate bowl, mix the cooked sausage with the frozen hash browns. Ensure they are evenly distributed.
7. Layer Ingredients: Grease a 9×13-inch baking dish. Spread the hash brown and sausage mixture evenly across the bottom. Pour the egg mixture over the top.
8. Add Cheese: Sprinkle shredded cheddar cheese evenly over the casserole.
9. Bake: Place the dish in the preheated oven and bake for 35-40 minutes or until the center is set and the top is golden brown.
10. Cool Slightly: Once done, remove the casserole from the oven and let it cool for 5-10 minutes before slicing.
11. Garnish: If desired, sprinkle fresh chives or parsley on top for a pop of color and added flavor.

Following these steps will guide you in creating an incredible breakfast casserole that will impress everyone at the table.