01 -
Preheat oven to 375°F (190°C). Grease a 9x13-inch baking dish.
02 -
Spread thawed hash browns evenly in the dish and drizzle with olive oil or butter. Bake for 15 minutes to crisp slightly.
03 -
Whisk eggs, milk, salt, pepper, garlic powder, and onion powder in a large bowl.
04 -
Remove the dish from the oven and layer cheese, meat (if using), bell peppers, and onion over the hash browns.
05 -
Pour the egg mixture evenly over the top.
06 -
Bake uncovered for 35–40 minutes, or until the center is set and the top is golden.
07 -
Let cool for 5–10 minutes before slicing. Garnish with parsley if desired.