Make-Ahead Sausage and Potato Breakfast Casserole
If you’re looking for the perfect holiday morning breakfast, this Make-Ahead Sausage and Potato Breakfast Casserole is about to become your new go-to. It’s cozy, cheesy, unbelievably easy, and it can be made ahead so you can enjoy a stress-free morning with family and friends.
This make-ahead casserole features hashbrowns as the base, but if you’d rather use bread, try my Overnight Breakfast Christmas Casserole.
It’s everything you want in a breakfast bake:
✓ golden hash browns
✓ flavorful sausage
✓ melty cheese
✓ custardy eggs
✓ rich mascarpone that gives every bite a luxurious, creamy texture
And if you’re looking for more holiday inspiration, check out my Top 10 Family Holiday Side Dishes and Top 10 Holiday Appetizers after you try this one!
🗒 More Delicious Recipes
-
Top 10 Easy Super Bowl Appetizers & Dips Everyone Always Asks Me For
If you’re hosting a Super Bowl party, heading to a tailgate, or showing up to game day with a dish you know will disappear, this list is for you. These are my top 10 easy Super Bowl appetizers, dips, sliders, and one must-make dessert — the recipes my family makes on repeat and the ones…
-
Easy Strawberry Tres Leches Poke Cake (With Strawberry Ice Cream!)
If I’m hosting or bringing a dessert to an event, I make one dessert — and I make it count. For Super Bowl Sunday, this Easy Strawberry Tres Leches Poke Cake is that dessert. Soft, soaked, creamy, fruity, and honestly… dangerous. Most tres leches cakes use three types of milk. I do too — but…
-
6-Ingredient Dilly Pickle Chip Dip
If you’re looking for the ultimate game day dip, this is it. Creamy, tangy, loaded with real dill pickle flavor, and made with just six simple ingredients, this Dilly Pickle Chip Dip is one of those recipes people will ask you to bring every single time. And the secret? Dano did the dang thing with…
👝 How to Store Leftovers
Store the casserole in an airtight container for 3-5 days!
❄️ Ingredient Swap: Mascarpone vs. Sour Cream
If you don’t have mascarpone or want a slightly tangier flavor, you can use sour cream instead.
Swap Ratio: 1:1 — replace mascarpone with the same amount of sour cream.
Flavor Notes:
- Mascarpone = ultra creamy, rich, slightly sweet, luxurious
- Sour cream = tangier, lighter, still delicious
Optional: For extra richness when using sour cream, stir in 1 tablespoon softened cream cheese — not required, but yummy.
Tips & Tricks
- Room-temperature mascarpone blends MUCH easier — don’t skip this step.
- Lightly beating the eggs first prevents over-mixing later.
- Cheddar adds flavor brightness — the combo of mozzarella + cheddar is perfect.
- Thawed hash browns layer more evenly and bake more consistently.
- Resting after baking ensures clean, even slices.
🎥 Items Featured in the Video
🤔 Common Questions
Yes! Assemble it completely, cover tightly, and refrigerate overnight. In the morning, let it sit at room temperature for 20–30 minutes, then bake as directed.
Yes — thawing is important so the casserole bakes evenly and doesn’t release excess moisture. If you use frozen hash browns, the center may stay undercooked.
Make-Ahead Sausage and Potato Breakfast Casserole
Ingredients
- 1 lb ground breakfast sausage
- 1 30–32 oz bag frozen shredded hash browns, thawed
- 8 large eggs
- 8 oz mascarpone cheese must be room temperature
- 1 ½ cups freshly shredded mozzarella
- 8 oz freshly shredded sharp cheddar
- 1 –2 tablespoons chopped fresh chives plus extra for topping
- Salt & freshly cracked black pepper to taste
- Optional: ½–1 teaspoon Italian seasoning
- Nonstick spray like Pam or butter for greasing the baking dish
Instructions
Cook the Sausage
- Brown the ground sausage in a skillet over medium heat, breaking it into small crumbles. Drain any excess grease and let it cool slightly.
Prep the Egg & Mascarpone Mixture
- In a large bowl, lightly beat the eggs with a fork — just enough to break them up.
- Add the room-temperature mascarpone.
- Use your fork to press the mascarpone gently along the sides of the bowl to help break it down.
- Add salt, pepper, and Italian seasoning (optional).
- Whisk until it is almost incorporated — it may look a little lumpy, and that’s totally fine.
Assemble the Casserole
- Grease a 9×13-inch baking dish with Pam or butter.
Layer in this exact order:
- Hash Browns
- Add thawed hash browns to the dish.
- Season with a little salt and pepper.
- Toss with your hands to coat evenly.
- A Handful of Mozzarella
- Sprinkle just a handful over the hash browns.
- Cooked Sausage
- Spread evenly over the cheese layer.
- A Light Sprinkle of Cheddar
- Just a small amount before the egg mixture.
- Egg-Mascarpone Mixture
- Pour evenly over the entire dish.
- Remaining Cheese
- Sprinkle the rest of the mozzarella and cheddar over the top.
- Add 1–2 tablespoons chopped chives.
Bake
- Bake at 350°F for 45–55 minutes, or until the center is set and the top is lightly golden.
Rest & Serve
- Let the casserole rest for 10 minutes before slicing.
- Sprinkle extra fresh chives on top before serving.
