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–+ servings

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.
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!
5 from 1 vote
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Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Course Main Course
Cuisine American
Servings 5 people

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.
Keyword best casserole, breakfest casserole, potato breakfast casserole
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