Martha Stewart Hash Brown Breakfast Casserole Recipe

My kitchen smelled like a diner. Sausage, melted cheese, golden potatoes. My family came running.

That was the moment this Martha Stewart Hash Brown Breakfast Casserole Recipe became a permanent fixture in my home.

It’s my top pick for holidays, lazy Sundays, and big hungry crowds.

And honestly? How to make Martha Stewart Hash Brown Breakfast Casserole is way simpler than it looks. One pan. Done.

What Makes This Recipe Special

This one really hits different. The base is a layer of crispy shredded hash browns golden on the bottom, soft in the middle.

Then comes the savory sausage, the sharp cheddar that pulls in long strings, and a fluffy egg custard baked right over the top.

It’s filling without being too heavy. Prep takes about 15 minutes, and the oven does all the hard work.

You can even assemble it the night before and refrigerate it overnight, which saves so much stress on busy mornings. For a crowd of 8 to 10, nothing beats this.

Equipment List

9×13-inch Baking Dish: This is your main vessel. It holds all the layers perfectly and gives you clean slices.

Large Skillet: You need this for browning the sausage and softening the onion before assembly.

Large Mixing Bowl: For whisking the egg custard together until it’s frothy and well combined.

Whisk: Makes sure your eggs, milk, and seasoning come together smooth.

Clean Kitchen Towel or Cheesecloth: Critical for squeezing moisture from the hash browns. Don’t skip this.

Measuring Cups and Spoons: For getting your salt, garlic powder, and milk amounts just right.

Sharp Knife and Cutting Board: To chop the onion and slice the green onions for garnish.

Ingredients You Need for Martha Stewart Hash Brown Breakfast Casserole

Frozen Shredded Hash Browns: The star of the crust. They bake up crispy on the outside and hold the whole casserole together.

Pork Breakfast Sausage: Adds deep savory flavor throughout every bite. Use a spicy variety if you want a little kick.

Yellow Onion: Sweetens up beautifully when cooked with the sausage. Gives the filling real depth.

Sharp Cheddar Cheese: Bold and tangy. It melts into the egg layer and bubbles on top — gorgeous.

Large Eggs: The binder and the heart of the dish. They puff up in the oven into something almost custard-like.

Whole Milk: Makes the egg mixture rich and creamy rather than rubbery. Worth it.

Salt: Pulls all the flavors together. Simple, but necessary.

Black Pepper: Adds a gentle warmth. Don’t be shy.

Garlic Powder: A subtle background note that makes the whole thing taste more complex.

Green Onions: For garnish. That pop of fresh color right before serving makes the whole dish look amazing.

How to Assemble Martha Stewart Hash Brown Breakfast Casserole

Step 1: Preheat the Oven and Prep Your Dish

Set your oven to 375°F (190°C). Grease your 9×13-inch baking dish with butter or nonstick spray generously.

Step 2: Cook the Sausage and Onion

In your large skillet over medium-high heat, cook the pork sausage with the chopped yellow onion. Break the sausage up as it cooks, until it’s fully browned and the onion is soft. Drain off any excess grease.

Step 3: Squeeze the Hash Browns

Place the thawed hash browns into a clean kitchen towel or cheesecloth. Squeeze as hard as you can to remove all the moisture. Seriously — a soggy bottom is the enemy here.

Step 4: Press the Hash Brown Crust

Spread the dried hash browns evenly across the bottom of your greased baking dish. Press them down firmly using your hands or the bottom of a measuring cup, forming a tight, even crust.

Step 5: Build the Layers

Spread the cooked sausage and onion mixture evenly over the hash brown crust. Sprinkle 1 cup of the shredded cheddar cheese right over the sausage layer.

Step 6: Make the Egg Mixture

Crack all 10 eggs into your large mixing bowl. Add the whole milk, salt, black pepper, and garlic powder. Whisk it all together until the mixture is frothy and smooth.

Step 7: Pour and Top

Pour the egg mixture slowly and evenly over all the layers in the baking dish. Sprinkle the remaining ½ cup of cheddar cheese over the very top.

Step 8: Bake Until Golden

Slide the dish into the oven and bake for 40 to 50 minutes. You want the center fully set and the top a deep golden brown. A knife poked in the middle should come out clean.

Step 9: Rest and Garnish

Let the casserole sit for at least 10 minutes before cutting. This helps everything firm up for clean slices. Scatter the sliced green onions over the top and serve warm.

Recipe Notes

➜ Always thaw your hash browns fully the night before baking.

➜ Squeeze every last drop of water from the hash browns for a crispy crust.

➜ Press the hash brown layer firmly so it holds together when you slice.

➜ Room temperature eggs and milk give you a creamier, smoother custard.

➜ Don’t overbake pull it out when the center is just set, not bouncy-firm.

➜ Let it rest 10 minutes before slicing or it will fall apart.

➜ Use a hot or spicy sausage if you want extra flavor.

How To Store Leftover

Once the casserole cools down, cover the dish tightly with foil or transfer slices to an airtight container. It keeps in the fridge for up to 4 days.

Just microwave individual portions for 1 to 2 minutes to reheat. Want to freeze it? Wrap individual portions in plastic wrap and foil.

They’ll hold up in the freezer for up to 2 months. Thaw overnight in the fridge before reheating.

Sides & Pairings Suggestions

This casserole is rich and filling on its own, so I like to keep sides light and fresh. A bowl of mixed berries or sliced melon adds a cool, refreshing contrast.

Sliced avocado with a squeeze of lemon on the side is perfect. You can also set out a bottle of hot sauce and a jar of salsa people go crazy for it.

A simple green salad with lemon dressing rounds out the whole brunch spread beautifully.

Nutrition

Nutrient	Per Serving
Calories	430 kcal
Total Fat	28g
Protein	24g
Total Carbohydrates	19g
Sodium	850mg

FAQs about Martha Stewart Hash Brown Breakfast Casserole

What are the 4 ingredients in hash brown casserole? A basic version uses frozen hash browns, shredded cheddar cheese, cream of mushroom soup, and sour cream. These four create a rich, creamy, and satisfying potato casserole.

What is a 3 ingredient hash brown casserole? The simplest version uses just frozen hash browns, canned cream of potato soup, and shredded cheese. Mix, pour into a baking dish, and bake until golden and bubbly.

What is Martha Stewart’s most famous recipe? Martha is widely known for her perfect roast chicken and her classic pound cake. But her make-ahead breakfast casseroles have also become hugely popular among home cooks everywhere.

What are some tips for making breakfast casserole with hash browns? Always thaw and dry the hash browns first. Press the crust firmly. Use room temperature eggs. Don’t overbake the egg layer or it turns rubbery and dry.

Final Thoughts

This Martha Stewart Hash Brown Breakfast Casserole Recipe is the kind of dish that gets requested every single holiday season.

It’s simple, it’s satisfying, and it feeds a crowd without any stress. The crispy hash brown base alone is worth making it. Once you try it, it’ll be on permanent rotation in your home too — I’d bet on it.

Give it a go this weekend. Tag me when you do!

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