Name: Sausage, Egg And Hash Brown Breakfast Casserole
Prep time: 20 min
Cook time: 45 min
Total time: 1 h 5 min
Cuisine: American
Ingredients: 1 pound breakfast sausage, cooked and drained; 4 cups frozen hash browns, unthawed; 8 large eggs; 1 cup whole milk; 1 ½ cups shredded cheddar cheese, divided; 1 red bell pepper, diced; ¼ cup green onions, sliced; 1 cup fresh spinach, chopped (optional); 1 teaspoon salt; ½ teaspoon black pepper

I absolutely love waking up to a hearty, comforting breakfast that feels like a warm hug on a plate—and this Sausage, Egg and Hash Brown Breakfast Casserole delivers every single time. Whether it’s a lazy Sunday morning or a busy holiday brunch, this dish always steals the show. It’s a one-pan wonder layered with crispy hash browns, savory sausage, fluffy eggs, colorful veggies, and lots of gooey cheese—basically all your breakfast favorites baked into one delicious casserole.

What I especially enjoy about this casserole is how easy it is to prep ahead of time. I can throw it together the night before, pop it in the fridge, and then just bake it in the morning—perfect for feeding a crowd or just having leftovers ready to go for the week. It’s satisfying, flavorful, and customizable to whatever ingredients you have on hand.

Why You’ll Love This Sausage, Egg And Hash Brown Breakfast Casserole

This breakfast casserole is the perfect blend of convenience and comfort. It’s incredibly easy to make, and it feeds a group with minimal effort. Whether you’re meal prepping, hosting guests, or just want a fuss-free breakfast, this recipe has you covered. Plus, it’s packed with protein, veggies, and flavor—everything you need to start the day off right.

Can I Use Fresh Potatoes Instead of Frozen Hash Browns?

Absolutely. If you’d rather use fresh potatoes, just make sure to shred them and squeeze out as much moisture as possible using a clean kitchen towel. Excess moisture can make the casserole soggy, so drying them well is key. Frozen hash browns save time, but fresh potatoes work beautifully if you’re going the homemade route.

Options for Substitutions

This casserole is very forgiving and easy to modify. You can swap the sausage for cooked bacon, diced ham, or a vegetarian sausage alternative. Don’t eat dairy? Use a dairy-free cheese and milk alternative. Want more greens? Toss in spinach or kale. You can even make it spicy by adding jalapeños or pepper jack cheese. The base is flexible, so adjust it to suit your taste or dietary needs.

Ingredients for this Sausage, Egg And Hash Brown Breakfast Casserole

Breakfast sausage – Provides rich, savory flavor and hearty protein.
Frozen hash browns – Serve as the starchy base of the casserole and add texture.
Eggs – Bind all the ingredients together while adding fluffiness and protein.
Whole milk – Adds creaminess and helps create a custardy texture.
Cheddar cheese – Melts beautifully and brings a sharp, cheesy flavor.
Red bell pepper – Adds sweetness and a colorful crunch.
Green onions – Provide a mild, fresh oniony kick.
Spinach (optional) – A great way to add nutrients and a pop of green.
Salt & pepper – Essential for seasoning the entire dish.

Step 1: Brown the Sausage

In a skillet over medium heat, cook the sausage until it’s no longer pink, breaking it into small pieces as it browns. Drain any excess grease and set it aside to cool slightly.

Step 2: Prepare the Baking Dish

Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with butter or non-stick spray. This prevents sticking and helps with clean-up.

Step 3: Layer the Hash Browns

Spread the frozen hash browns evenly in the bottom of the prepared baking dish. No need to thaw them first—they’ll cook perfectly in the oven.

Step 4: Add the Sausage and Veggies

Sprinkle the browned sausage evenly over the hash browns. Then scatter the chopped red bell pepper, green onions, and spinach (if using) across the top.

Step 5: Add the Cheese

Sprinkle about two-thirds of the shredded cheddar cheese over the sausage and veggies. Save the remaining third for topping later.

Step 6: Whisk the Egg Mixture

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

Step 7: Top with Cheese

Sprinkle the remaining cheddar cheese over the top. This gives the casserole a golden, bubbly finish.

Step 8: Bake the Casserole

Bake uncovered for 40–45 minutes or until the center is set and the top is lightly golden. A knife inserted in the middle should come out clean.

Step 9: Cool and Serve

Let the casserole rest for 5–10 minutes before slicing. This helps it set and makes serving easier. Enjoy warm, or refrigerate for later!

How Long to Prepare the Sausage, Egg And Hash Brown Breakfast Casserole

Making this breakfast casserole doesn’t take much effort, but planning ahead can make the process even smoother. The total time from prep to table is just over an hour, making it ideal for weekend mornings or prepping in advance.

Prep Time: Prepping the ingredients takes about 15–20 minutes. That includes browning the sausage, chopping veggies, and whisking the egg mixture. If you’re using fresh potatoes instead of frozen hash browns, add an extra 5–10 minutes.

Cook Time: The casserole bakes in the oven for 40–45 minutes. It’s ready when the eggs are set in the center and the top is lightly golden and bubbly. Let it rest for 5–10 minutes before slicing to help it firm up.

Tips for Perfect Sausage, Egg And Hash Brown Breakfast Casserole

Grease your baking dish well to avoid sticking.
Use pre-cooked sausage to save time in the morning.
Whisk the eggs thoroughly to ensure a smooth texture.
Sprinkle the cheese on top for that golden, crispy finish.
Let it rest before serving—this helps the casserole hold its shape when sliced.

Watch Out for These Mistakes While Cooking

Not draining the sausage: Excess grease can make the casserole greasy and soggy.
Skipping the seasoning: Don’t forget to add salt and pepper to the egg mixture.
Overbaking: Baking too long can dry it out; keep a close eye around the 40-minute mark.
Using wet potatoes: If using fresh potatoes, be sure to squeeze out the moisture.
Cutting too soon: Letting it cool slightly before slicing makes a big difference in texture.

What to Serve With Sausage, Egg And Hash Brown Breakfast Casserole?

1. Fresh Fruit Salad

A light and refreshing contrast to the richness of the casserole.

2. Buttery Toast or English Muffins

Perfect for sopping up any cheesy eggy goodness.

3. Yogurt Parfaits

Add a layer of sweetness and crunch alongside your savory breakfast.

4. Sliced Avocados or Guacamole

Creamy and nutrient-rich, it pairs wonderfully with the cheesy, savory base.

5. Freshly Brewed Coffee or Orange Juice

Classic breakfast drinks to round out the meal.

Storage Instructions

Refrigerator: Let the casserole cool completely, then store leftovers in an airtight container or cover the dish tightly with foil. It will keep well in the fridge for up to 4 days.

Freezer: You can freeze individual slices or the whole casserole. Wrap well in plastic wrap and foil or use freezer-safe containers. It freezes well for up to 2 months. Thaw overnight in the fridge before reheating.

Reheating: Warm in the microwave for 1–2 minutes per slice, or reheat the whole dish in a 350°F oven for about 20 minutes, covered with foil to prevent drying.

Estimated Nutrition (per serving)

Calories: 320
Protein: 18g
Carbohydrates: 12g
Fat: 22g
Saturated Fat: 9g
Fiber: 1g
Sugar: 2g
Sodium: 600mg

Frequently Asked Questions

How far in advance can I make this casserole?

You can assemble it the night before, cover it, and refrigerate. Just bake it in the morning.

Can I use egg whites instead of whole eggs?

Yes, substitute 2 egg whites for every whole egg. The texture may be slightly different but still delicious.

Is it gluten-free?

Yes, as long as your sausage and hash browns are gluten-free. Always double-check the labels.

Can I double the recipe?

Definitely! Use two 9×13 pans or one larger baking dish. Baking time may increase slightly.

What’s the best way to reheat leftovers?

Microwave slices for a quick reheat or warm in the oven at 350°F for 15–20 minutes.

Conclusion

The Sausage, Egg and Hash Brown Breakfast Casserole is the ultimate make-ahead breakfast that combines comfort, flavor, and ease all in one dish. Whether you’re feeding a crowd, meal prepping for the week, or just treating yourself to a cozy weekend breakfast, this recipe hits all the marks. With endless ways to customize and simple storage options, it’s a go-to favorite you’ll want to make again and again.