Preheat oven to 375 F. Lightly grease a 9x13-inch baking dish with non-stick cooking spray.
Brown the breakfast sausage in a large skillet. Once browned, set aside and drain. Pour off excess grease from the skillet.
In a bowl, whisk together the eggs and pour into the greased skillet and scramble the eggs.
In the prepared baking dish, place the frozen hashbrowns into a single layer. Spread the browned sausage and scrambled eggs over the top. Top with shredded cheddar cheese. Cover tightly with foil.
Bake in the preheated oven for 25 minutes, then remove the foil and bake another 15 minutes. Let cool slightly before serving.
Serve Breakfast Lasagna Bake as is, or with preferred toppings like chives, salsa, sour cream or pico de gallo. Enjoy!