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If you’re looking for a hearty, soul-warming breakfast that brings all the best morning flavors together in one glorious dish, then this Breakfast Sausage Hash Brown Casserole Recipe is about to become your new go-to. It blends crispy, buttery hash browns, savory breakfast sausage, vibrant peppers and onions, and a melty double-cheese layer, all bound together with a creamy, perfectly seasoned egg custard. Whether it’s a special weekend gathering or just a treat-yourself weekday brunch, this casserole brings comfort and crowd-pleasing deliciousness every single time.

Ingredients You’ll Need
The beauty of this Breakfast Sausage Hash Brown Casserole Recipe lies in its simple, straightforward ingredients that each play a starring role. From the crispy hash browns that form the perfect base to the rich cheeses that melt and meld with savory sausage and veggies, every element adds texture, color, and flavor to this irresistible dish.
- Butter (1/2 cup): Adds richness and helps crisp up the hash browns beautifully.
- Shredded hash brown potatoes (30 oz): The crispy foundation of the casserole that soaks up buttery goodness and all the savory flavors.
- Salt and pepper: Essential seasonings to bring out the natural flavors of the ingredients.
- Breakfast sausage (1 lb): Packs a hearty, savory punch and pairs perfectly with the creamy egg mixture.
- Green and red bell peppers (1/2 each): Provide a touch of sweetness, color, and a fresh bite to balance the richness.
- Small onion (1/2): Adds aromatic depth and subtle sweetness when sautéed.
- Monterey Jack cheese (1 1/2 cups shredded): Melts smoothly for a mild, creamy texture in the cheese blend.
- Sharp cheddar cheese (1 1/2 cups shredded): Brings a bold, tangy flavor that complements the sausage and veggies.
- Eggs (8 large): Create the custardy base that holds everything together.
- Half and half (1 1/3 cups): Makes the casserole wonderfully creamy and tender; you can substitute with cream, evaporated milk, or whole milk.
- Seasoned salt (1 tsp): Enhances the overall seasoning with a hint of extra flavor notes.
- Kosher salt (1/2 tsp): Adds just the right hit of saltiness (use 1/4 tsp if table salt).
- Black pepper (1/2 tsp): Adds a mild heat and earthiness.
- Dry mustard (1/4 tsp, optional): A subtle flavor booster that brightens the savory profile.
How to Make Breakfast Sausage Hash Brown Casserole Recipe
Step 1: Prepare the Oven and Potato Layer
Start by preheating your oven to 400 degrees F. Spread the frozen shredded hash browns evenly in a 9×13 inch baking dish—you don’t need to thaw them first, which saves time! Melt 1/2 cup of butter and drizzle it over the potatoes, mixing well so every bite has that buttery crispness. Season with salt and pepper, then pop the dish into the oven to bake for 30 to 35 minutes until the potatoes are cooked through and starting to turn golden.
Step 2: Cook the Sausage and Veggies
While the potatoes bake, chop the green and red peppers and dice the onion finely. In a skillet over medium-high heat, brown the breakfast sausage, breaking it up as it cooks. Add the chopped vegetables and sauté until the sausage is fully cooked and the onion softens. Carefully drain any excess grease—this keeps the casserole from becoming too oily.
Step 3: Combine Sausage with Hash Browns
Once the hash browns have baked and the oven temperature is lowered to 350 degrees F, add the cooked sausage and veggie mixture to the potato layer. You can stir it all together for a harmonious mix or keep the sausage as a distinct layer—either way tastes fantastic!
Step 4: Add Cheese Layers
Sprinkle equal parts Monterey Jack and sharp cheddar cheeses evenly over the top. This dual cheese blend creates a dreamy, melty crown that enhances every bite with luscious cheesiness and a lovely, bubbly finish.
Step 5: Prepare and Pour Egg Mixture
Whisk together the eggs, half and half, seasoned salt, kosher salt, black pepper, and dry mustard until smooth. This custard will set everything into a firm yet tender casserole. Pour it gently over the sausage, potatoes, and cheese, making sure it’s well distributed for even baking.
Step 6: Final Bake and Rest
Bake at 350 degrees F for 35 to 45 minutes or until the edges are golden brown and bubbling, and the center is set without any wobble. Let the casserole rest for about 5 minutes before serving to allow it to firm up perfectly.
How to Serve Breakfast Sausage Hash Brown Casserole Recipe

Garnishes
Add fresh chopped parsley or chives for a bright color contrast that also adds a gentle oniony freshness. A dollop of sour cream or a drizzle of hot sauce can also elevate this dish to new flavor heights.
Side Dishes
This casserole shines as a complete meal but pairs wonderfully with a crisp green salad to lighten the plate or a side of fresh fruit to bring a burst of natural sweetness to balance the savory richness.
Creative Ways to Present
For a brunch crowd, cut the casserole into neat squares and serve on a platter with mini serving forks. You can also prepare individual portions in ramekins for an elegant touch or layer it in muffin tins for grab-and-go breakfast bites.
Make Ahead and Storage
Storing Leftovers
Leftover breakfast sausage hash brown casserole keeps beautifully in the refrigerator for up to five days. Store it in an airtight container to preserve freshness and moisture.
Freezing
This recipe freezes exceptionally well. Portion it out and wrap tightly to freeze, making it super convenient to enjoy later—just thaw and reheat for a delicious homemade breakfast any morning.
Reheating
Reheat leftovers in the oven at 350 degrees F until warmed through to keep the texture crisp and the cheese melty. Microwave reheating works too but might soften the crust—both methods will still taste amazing!
FAQs
Can I use diced hash browns instead of shredded?
Definitely, although shredded hash browns yield a more cohesive texture that crisps up nicely. Diced works in a pinch but changes the bite slightly.
Is it possible to make this casserole vegetarian?
Yes! Simply swap the breakfast sausage for your favorite plant-based sausage or sautéed mushrooms for a savory, meat-free version that’s just as flavorful.
Can I prepare this casserole the night before?
Absolutely. Assemble the casserole up to the point of pouring the egg mixture, cover it tightly, and refrigerate overnight. Bake in the morning, adding a few extra minutes to ensure it’s cooked through.
What if I don’t have half and half?
You can use heavy cream, evaporated milk, or whole milk as substitutes. Keep in mind that cream will make it richer while whole milk will be lighter but still delicious.
Can I add other vegetables to this dish?
Yes, feel free to experiment with mushrooms, spinach, or even some diced tomatoes. Just be mindful of moisture content so the casserole doesn’t get too soggy.
Final Thoughts
This Breakfast Sausage Hash Brown Casserole Recipe is such a warming, crowd-pleasing dish that’s perfect for lazy weekend mornings or feeding a hungry group. It’s loaded with flavors and textures that are both nostalgic and exciting, and I promise once you try it, it’ll become a staple in your breakfast rotation. So grab those simple ingredients and get ready to indulge in a casserole that truly tastes like a hug on a plate!
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