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
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✓ 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!
👝 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
Method
- Brown the ground sausage in a skillet over medium heat, breaking it into small crumbles. Drain any excess grease and let it cool slightly.
- 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.
- Grease a 9×13-inch baking dish with Pam or butter.
- 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 at 350°F for 45–55 minutes, or until the center is set and the top is lightly golden.
- Let the casserole rest for 10 minutes before slicing.
- Sprinkle extra fresh chives on top before serving.
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Fantastic mouthwatering delicious
Easy
Fabulous breakfast casserole! This was so flavorful. I used #CougarGold for the sharp cheddar and that further elevated the flavor. Thanks for a great recipe…will be making again, for sure!
This was a hit! Fantastic. I added a few more eggs to make it eggier. 🫶🏼♥️