In a skillet, cook the sausage over medium-high heat, crumbling it as it cooks.

Once the sausage is almost done, stir in the chopped onion and diced bell pepper. Continue cooking until the vegetables are softened and slightly browned. Remove from heat.

Grease a 9-inch baking dish with cooking spray. Evenly layer the thawed hashbrowns in the dish.

Spread the cooked sausage and vegetable mixture over the hashbrowns, followed by an even layer of shredded cheddar cheese.

In a bowl, whisk together the eggs, milk, salt, and pepper until well combined. Pour this mixture evenly over the layered ingredients in the baking dish.

Bake in a preheated oven at 350°F for 45 minutes, or until the center is set and the top is golden brown. Serve warm and enjoy!