Creating the Easy Sausage and Egg Casserole can be surprisingly straightforward. Just follow these easy steps for a delicious outcome:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C). Grease a 9×13-inch casserole dish with cooking spray or butter.
2. Cook the Sausage: In a large skillet over medium heat, cook the sausage until browned and fully cooked, breaking it into crumbles as it cooks. Drain excess grease and set aside.
3. Mix the Eggs: In a large bowl, crack the eggs and whisk them together. Add the milk, salt, black pepper, garlic powder, and onion powder. Mix until well combined.
4. Assemble Ingredients: In the greased casserole dish, spread out the thawed hash browns evenly. Top them with the cooked sausage and any diced bell peppers, if using.
5. Add the Egg Mixture: Pour the egg mixture evenly over the hash brown and sausage layers in the casserole dish, ensuring everything is well coated.
6. Add Cheese: Sprinkle shredded cheddar cheese on top of the casserole mixture for extra flavor.
7. Bake: Place the casserole in the preheated oven and bake for 30-35 minutes, or until the eggs are set and the cheese is melted and slightly golden.
8. Cool Slightly: Once baked, take the casserole out of the oven and let it cool for about 5-10 minutes. This helps the layers settle and makes for easier slicing.
9. Garnish: Sprinkle chopped green onions on top for added freshness and flavor before serving.

These straightforward steps will have you creating an incredible Easy Sausage and Egg Casserole in no time!