Easy Breakfast Casserole Recipe with Sausage and Hash Browns

This easy breakfast casserole recipe combines browned breakfast sausage, thawed shredded hash browns, sharp cheddar cheese, eggs, and whole milk in one hearty 9-by-13-inch dish. Prep takes just 15–20 minutes, and the casserole bakes uncovered at 350°F for 45–55 minutes until the center reaches 160°F.

Every serving has crisp-edged potatoes, savory sausage, creamy baked eggs, and plenty of melted cheddar. It is a practical make-ahead breakfast for holidays, weekend brunches, family gatherings, and busy mornings when you want a filling meal without standing over the stove.

Why You’ll Love This Recipe

This breakfast casserole delivers the best parts of a classic morning plate in a single bake. The sausage provides savory flavor, the hash browns add a satisfying potato base, and the sharp cheddar brings a rich, familiar finish.

Using 10 eggs creates a firmer casserole that cuts into tidy portions. The texture is tender but sturdy rather than loose, making it easy to serve at a brunch buffet or pack leftovers for the next morning.

It is also flexible without requiring a completely different recipe. You can include 1/2 cup of diced onion or bell pepper with the sausage, or browse our savory biscuits and gravy casserole when you want another comforting breakfast bake.

Ingredients You’ll Need

The ingredient list is short, affordable, and easy to find. Frozen shredded hash browns save time, while whole milk gives the egg mixture a creamy, full-bodied texture.

• Breakfast sausage: Use 1 pound of bulk sausage and break it into small pieces as it cooks.
• Hash browns: One 30-ounce bag of frozen shredded hash browns forms the potato layer.
• Sharp cheddar: Two cups provide flavor and a golden, cheesy top.
• Eggs and milk: Ten large eggs and 2 cups of whole milk create the firm custard.
• Seasoning: Kosher salt and black pepper keep the flavor balanced.
• Optional vegetables: Add 1/2 cup of diced onion or bell pepper when cooking the sausage.

Thaw the hash browns before you begin, and drain them thoroughly. Wet potatoes release water as they bake, which can leave the finished casserole soft or watery instead of hearty and sliceable.

How to Make It Step-by-Step

Step 1: Heat the oven to 350°F and grease a 9-by-13-inch baking dish. Coating the bottom and sides helps the casserole release more easily after its short resting period.

Step 2: Brown the bulk breakfast sausage in a skillet over medium heat, breaking it into small pieces as it cooks. If you are adding diced onion or bell pepper, sauté it with the sausage until the vegetables are tender, then drain excess fat.

Step 3: Spread the thawed and drained hash browns across the prepared baking dish. Create an even layer from corner to corner so each serving receives a balanced amount of potato.

Step 4: Sprinkle the cooked sausage over the hash browns, followed by 1 1/2 cups of shredded sharp cheddar. Reserve the final 1/2 cup cheese for the top, where it will melt into a golden blanket.

Step 5: In a large bowl, whisk together the 10 eggs, 2 cups of whole milk, 1 teaspoon kosher salt, and 1/2 teaspoon black pepper. Pour the mixture slowly and evenly over the casserole so it can flow through the potato and sausage layers.

Step 6: Sprinkle the remaining 1/2 cup of cheddar over the surface. The cheese adds color, flavor, and a lightly browned finish as the casserole bakes.

Step 7: Bake the dish uncovered for 45–55 minutes. Begin checking near the end of the range; the center should be set, and an instant-read thermometer inserted into the middle should reach 160°F.

Step 8: Remove the casserole from the oven and let it rest for 5–10 minutes before slicing. This brief pause allows the baked eggs to finish settling, helping each square hold its shape.

For another hearty casserole idea to add to your brunch menu, try this family-friendly casserole with Big Mac-inspired flavors for a later meal.

Pro Tips for the Best Breakfast Casserole

The small details matter most with an egg casserole. Start with fully thawed potatoes, keep the sausage pieces fairly small, and pour the egg mixture evenly rather than concentrating it in one area.

• Drain carefully: Press or pat the thawed hash browns dry with paper towels if they feel damp.
• Do not overbake: Remove the dish when the center is set and reaches 160°F to keep the eggs tender.
• Rest before cutting: Five to 10 minutes gives the layers time to settle.
• Use a thermometer: Checking the center is more reliable than judging only by the browned cheese.
• Grate cheese freshly: Freshly shredded cheddar melts smoothly and spreads well across the casserole.

The recipe uses 10 eggs for a firmer texture. Some breakfast casserole versions use 8 eggs with 2 cups of milk for a softer, more custard-like result, but that proportion is different from this dependable sliceable version.

Make-Ahead, Storage, and Reheating

This casserole can usually be assembled, covered, and refrigerated overnight. Prepare the layers through the final cheese topping, cover the baking dish, and chill it until morning.

Before baking, let the refrigerated dish sit at room temperature briefly rather than putting a very cold baking dish straight into a hot oven. Expect to add roughly 10–15 minutes to the cooking time, and confirm that the center reaches 160°F.

Store cooled leftovers covered in the refrigerator and reheat individual portions until hot throughout. For a lighter breakfast pairing, serve a small piece with our fresh fruit and honey breakfast bowl.

Serving Ideas and Variations

Serve the casserole warm in generous squares with fresh fruit, coffee, or a simple green salad for a balanced brunch plate. Its savory sausage and cheddar flavor is satisfying enough for a holiday breakfast but familiar enough for an ordinary Saturday.

Bacon or diced ham can replace the sausage when you want a different smoky, salty flavor. Keep the same egg, milk, potato, cheese, salt, and pepper quantities so the structure and cooking time remain consistent.

You can also make a bread-based breakfast bake by substituting cubed bread for the hash browns, following the style of many overnight breakfast casseroles. For dessert after brunch, serve a portion of our pineapple banana dessert for a sweet tropical finish.

If you are planning a larger spread, add a second savory dish with our all-purpose Buffalo chicken marinade for a flavorful later meal. The breakfast casserole itself remains the centerpiece: warm, cheesy, filling, and easy to portion.

Easy Breakfast Casserole Recipe

A hearty breakfast casserole made with sausage, shredded hash browns, eggs, whole milk, and sharp cheddar cheese. It bakes into a firm, savory dish that slices neatly and feeds a crowd.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 45 minutes mins

Total Time 1 minute min

Servings: 8 servings

Ingredients Method Notes

Ingredients

  

Main Ingredients

• 1 pound Bulk breakfast sausage
• 1 30-ounce bag Frozen shredded hash browns, thawed
• 2 cups Shredded sharp cheddar cheese
• 10 eggs Large eggs
• 2 cups Whole milk
• 1 teaspoon Kosher salt
• 1/2 teaspoon Black pepper

Optional Additions

• 1/2 cup Diced onion or bell pepper

Method

 

Step-by-Step

1. Heat the oven to 350°F and grease a 9-by-13-inch baking dish.
2. Brown the sausage in a skillet over medium heat, breaking it into small pieces. If using diced onion or bell pepper, sauté it with the sausage, then drain excess fat.
3. Spread the thawed hash browns evenly in the prepared baking dish.
4. Scatter the cooked sausage over the potatoes, then sprinkle 1 1/2 cups of the shredded cheddar on top.
5. Whisk the eggs, whole milk, kosher salt, and black pepper together until well combined. Pour the mixture evenly over the hash browns, sausage, and cheese.
6. Sprinkle the remaining 1/2 cup cheese over the top.
7. Bake uncovered for 45–55 minutes, until the center is set and the internal temperature reaches 160°F.
8. Let the casserole rest for 5–10 minutes before slicing and serving.

Notes

Thaw and drain the hash browns thoroughly so excess water does not make the casserole soft or watery. For overnight preparation, assemble, cover, and refrigerate; let the dish sit at room temperature briefly before baking and expect to add roughly 10–15 minutes to the baking time.

Final Thoughts

This easy breakfast casserole recipe is a reliable way to feed a hungry table with minimal morning effort. Brown the sausage, layer the thawed hash browns and cheese, pour over the seasoned eggs and milk, then bake until the center reaches 160°F.

Remember the two most important details: drain the hash browns well and allow the baked casserole to rest for 5–10 minutes. With those steps in place, every slice will have tender eggs, savory sausage, cheesy edges, and a sturdy potato base that makes breakfast feel special.