Preheat the oven to 425°F.

Spray the bottom and sides of a 9×13 baking dish with nonstick cooking spray.

Cut the biscuits into quarters and add to the bottom of the prepared pan.

Sprinkle the top of the biscuits with cooked sausage and shredded cheese.

In a medium bowl, whisk together eggs, milk (or heavy cream), diced green chilies, pimentos, salt, black pepper, and garlic powder until blended.

Pour the egg mixture over sausage and cheese.

Bake for 25–30 minutes, or until set and the middle does not jiggle.

Let stand for 5 minutes before cutting into squares. Serve warm.