Preheat oven to 350 degrees. Heat a skillet over medium heat. Cook sausage, pepper, and onion until sausage is browned and vegetables are tender. Drain off any excess fat.
In a large bowl, combine sausage mixture with hash browns and cheddar cheese. Pour into a greased 9x13 baking dish.
In a separate bowl, combine eggs and milk. Whisk until fully blended. Pour over hash brown mixture.
Bake at 350 degrees for 50-60 minutes, or until eggs are set in the center and don't jiggle.
