Preheat your oven to 350°F (175°C). Lightly grease your 9x13-inch casserole dish with butter or non-stick spray to prevent sticking.
In a large skillet over medium heat, cook the crumbled turkey sausage until browned and cooked through, about 7-9 minutes. Drain any excess fat and set aside.
Place the cream cheese in a mixing bowl to soften if not already room temperature to help it blend easily with the eggs and milk.
In the bowl with softened cream cheese, whisk together the 4 large eggs and 1/2 cup milk until smooth and creamy. Stir in garlic powder, onion powder, salt, and pepper.
Add the thawed hashbrowns and shredded cheddar cheese into the egg and cream cheese mixture. Fold gently until evenly combined.
Spread half of the hashbrown mixture evenly in the prepared casserole dish. Sprinkle the cooked turkey sausage over this layer, then top with the remaining hashbrown mixture.
Bake the casserole in the preheated oven for 45-50 minutes or until the top is golden brown, the eggs are set, and the casserole is bubbly around the edges.
Sprinkle chopped green onions over the top for a fresh pop of color and flavor. Let the casserole cool for 5-10 minutes before slicing and serving.
Equipment
Large Skillet
Mixing Bowl
9x13 inch casserole dish
Whisk or fork
Spatula
Oven mitts
Notes
Make sure hashbrowns are fully thawed and patted dry to avoid sogginess.
Soften cream cheese thoroughly for a smooth custard texture.
Cook turkey sausage completely before adding to casserole for best flavor and safety.
Leftovers store well in fridge for up to 3 days and freeze well for meal prep.
Add veggies or swap cheeses to customize this versatile casserole.