01 -
Preheat oven to 175°C. Grease an 20 cm square baking dish thoroughly.
02 -
Arrange the thawed hash brown potatoes evenly in the prepared baking dish to form a base.
03 -
In a large skillet over medium heat, sauté pork sausage and diced onion together until sausage is browned and crumbled and onions are soft, about 10 minutes. Drain excess fat.
04 -
In a large bowl, whisk together eggs, milk, onion powder, garlic powder, salt, and ground black pepper until fully combined.
05 -
Pour the egg mixture evenly over the hash browns. Sprinkle half of the shredded Cheddar cheese on top. Layer with the cooked sausage and onion mixture, then cover with the remaining Cheddar cheese. Cover the dish with aluminium foil.
06 -
Bake covered for 60 minutes on the centre rack. Remove foil and continue baking for 10 to 15 minutes, or until top is golden and bubbling.
07 -
Remove from the oven and allow to cool for several minutes before slicing and serving.