When a breakfast casserole comes out of the oven, the first thing you want to see is a center that’s set enough to slice. This Turkey Sausage Breakfast Casserole brings together savory sausage, tender hash browns, eggs, green onions, and cheddar in a generous 9 × 13-inch pan.

It’s a practical choice for a weekend breakfast or a brunch table because one bake makes six servings. The sausage cooks first in a skillet; then you stir everything together and let the oven finish the dish. Cut it into portions while warm, and you can refrigerate or freeze any leftovers for another morning.

Why You’ll Love This Recipe

It makes six substantial portions from one 9 × 13-inch baking pan.
Turkey breakfast sausage, cheddar, and green onions add flavor throughout the bake.
A full package of frozen hash browns makes each serving hearty.
The method is straightforward: cook the sausage, mix the ingredients, and bake.
Cooked portions can be refrigerated or frozen for later breakfasts.

Ingredients

1 lb (454 g) raw ground turkey breakfast sausage
4 large eggs, lightly beaten
4 green onions, finely chopped
One 16 oz (454 g) package frozen hash brown potatoes
½ cup (120 mL) milk
1½ cups shredded cheddar cheese

urkey breakfast sausage gives the casserole its savory base. Cook and crumble it before adding it to the eggs so it’s spread throughout every slice.

Frozen hash browns make the casserole hearty and save you from peeling or grating potatoes. Add the full package to the mixing bowl.

Green onions and cheddar bring mild onion flavor and melted cheese to each portion. Chop the onions finely so they mix evenly with the sausage and potatoes.

How to Make This Recipe

Step 1: Cook the Turkey Sausage

Place the raw turkey breakfast sausage in a large, deep skillet over medium-high heat. Cook until it’s evenly browned and reaches 165°F (74°C) in the center. Drain it, crumble it, and set it aside. Pro tip: Use a food thermometer here; browning tells you how the outside looks, but not the temperature inside the sausage.

Step 2: Preheat and Combine the Ingredients

Preheat the oven to 350°F (175°C). In a large mixing bowl, stir together the lightly beaten eggs, finely chopped green onions, frozen hash browns, milk, and shredded cheddar. Add the cooked sausage and mix again, moving your spoon through the bottom of the bowl so the sausage and potatoes are distributed throughout.

Step 3: Fill the Baking Pan

Pour the mixture into a 9 × 13-inch baking pan and spread it across the bottom. Check that the sausage and hash browns aren’t gathered in one corner. Pro tip: Take a moment to level the mixture before baking; it makes cutting six portions simpler once the center has set.

Step 4: Bake and Check the Center

Bake at 350°F (175°C) for 1 hour. The center should look set, with no visible liquid egg, and a thermometer inserted into the middle should read 165°F (74°C). Don’t rely on the edges alone: a casserole can look firm there while its center remains loose. Cut the finished casserole into six portions and serve warm.

Expert Tips for Better Results

Check the sausage separately. It’s raw poultry when it enters the skillet, so confirm that it reaches 165°F (74°C) before adding it to the egg mixture.
Keep the stated potato amount. Use the entire 16 oz package of frozen hash browns to maintain the recipe’s balance of filling and eggs.
Finely chop the onions. Smaller pieces distribute more evenly, giving each portion some green onion rather than leaving most of it in one spot.
Mix from the bottom of the bowl. Hash browns and sausage can settle while you stir. Bring them back through the egg mixture before pouring it into the pan.
Check the middle before slicing. A set surface and firm edges are useful visual cues, but the center is the place to check with your thermometer.

Serving Suggestions

Serve a warm square alongside fresh fruit for a cool, bright contrast.
Add a simple green salad if you’re serving the casserole for brunch or lunch.
Set out orange slices for an easy side that needs no extra cooking.
Pair each portion with coffee or tea for a relaxed breakfast.
Bring the baking pan to the table and cut the six portions there, so each serving stays warm until it’s plated.

Storage and Reheating

Refrigerate: Transfer leftover portions to covered containers within 2 hours of cooking. Refrigerate for 3–4 days.
Freeze: Wrap or seal cooked portions and freeze for about 3 months.
Thaw: Thaw frozen portions in the refrigerator.
Reheat: Heat each portion until its center reaches 165°F (74°C). The time needed depends on the portion size and the equipment you use. Reheated eggs and potatoes may be softer than they are when freshly baked.