Preheat the Oven: Set your oven to 375 degrees.
Grease the Pan: Rub butter all over the baking dish.
Cook the Meat: Brown the sausage in a large pan.
Sauté Vegetables: Add onions and peppers to the meat.
Layer Potatoes: Put the hash browns in the dish.
Add Toppings: Spread the meat and veggies over potatoes.
Mix Liquids: Whisk the eggs, milk, and spices together.
Pour Mixture: Pour the eggs over the potato layers.
Add Cheese: Sprinkle plenty of cheese on the top.
Bake the Dish: Cook for about forty-five minutes total.
Check Doneness: Ensure the center is set and firm.
Cool Slightly: Let it sit for five minutes before serving.