Heat oven to 350*; spray an 8 x 8 dish with non-stick cooking spray
Arrange potatoes in a single layer in pan
Add salt, pepper and garlic powder
Add {any combination of the following} bacon, ham, sausage or green chilies {if desired}
In a medium bowl, beat eggs and milk
Pour egg mixture over potatoes
Sprinkle with cheese
Bake at 350* for 50 minutes or until eggs are firm