In a large skillet, cook the bacon over medium heat until crispy, about 8 minutes. Remove the bacon with a slotted spoon and place on a paper towel-lined plate.
Add the onion, red pepper, and green pepper to the skillet and cook until softened, about 5 minutes. Season with garlic powder, salt, and pepper.
In a large bowl, whisk together the eggs, cheese, and milk until combined. Add the cooked vegetables and bacon and stir to combine.
Pour the mixture into a greased 9x13-inch baking dish and bake for 30 minutes, or until the eggs are set.
Garnish with chopped parsley and serve.
Interesting Facts
This casserole can also be made with sausage, ham, mushrooms, or other vegetables.
It can be served with a variety of sides, such as toast, fruit, or breakfast potatoes.
Leftovers can be stored in the refrigerator for up to 3 days.