First, preheat your oven to 350 F or 180 C degrees.

Saute the sausage in a skillet over medium heat until completely browned. Set aside.

In the same skillet, warm the hashbrowns until lightly browned and mostly defrosted. It will take about 10 minutes.

Layer the hashbrowns in the bottom of a 9 x13 casserole dish you have greased well with cooking spray.

Add the sausages on top and sprinkle some cheese over the meat.

Sprinkle with green chillis on top and set aside.

In a bowl, whisk the eggs and whole milk together. Season with onion powder, garlic powder, and salt and pepper to taste. Whisk until combined.

Pour the egg mixture over the cheese.

Sprinkle the cheese over the meat, and add the green chilis to the cheese.

Bake for about 35 to 40 minutes until the eggs are completely cooked and set.

Serve and enjoy.