Viral Christmas Morning Breakfast Casserole (Sausage & Hashbrown Bake)

Viral Christmas Morning Breakfast Casserole (Sausage & Hashbrown Bake)

Christmas morning should start with something warm, cheesy, and absolutely stress-free — and this viral Christmas Morning Breakfast Casserole delivers exactly that. Crispy hashbrowns, savory breakfast sausage, sweet bell peppers, and fluffy eggs are baked together under a golden blanket of melted cheddar for a holiday brunch bake that practically cooks itself.

This is the make-ahead breakfast that has been all over Pinterest and TikTok this holiday season, and for good reason: you assemble everything the night before, pop it in the fridge, and simply bake it on Christmas morning while you open presents. No early alarm, no standing at the stove — just a bubbling, golden casserole that feeds the whole family in one dish.

Whether you are hosting a big holiday brunch or just want a cozy breakfast before the festivities begin, this sausage and hashbrown breakfast casserole is the recipe you will come back to every December.

Why You'll Love This Recipe

• Make-ahead magic: assemble it on Christmas Eve and bake it fresh on Christmas morning.

• Feeds a crowd: one 9x13 pan serves 10–12 hungry guests with hearty portions.

• Endlessly flexible: swap the sausage for bacon or ham, add mushrooms or spinach, or change up the cheese.

• Truly festive: red bell peppers and green scallions give it a classic Christmas look.

Ingredients

• 1 lb breakfast sausage (pork, chicken, or turkey)

• 1 (30 oz / 850 g) bag frozen shredded hashbrowns, thawed and patted dry

• 1 red bell pepper, diced

• 1 small onion, finely diced

• 10 large eggs

• 2 cups whole milk (or half-and-half for extra richness)

• 2 cups shredded sharp cheddar cheese, divided

• 1 tsp salt

• 1/2 tsp freshly ground black pepper

• 1/2 tsp garlic powder

• 1/2 tsp paprika

• 3 scallions, thinly sliced, for garnish

• Butter or cooking spray, for greasing

Instructions

1. Brown the sausage. In a large skillet over medium heat, crumble and cook the breakfast sausage until browned and cooked through, about 8–10 minutes. Drain off any excess fat and let cool slightly.

2. Layer the base. Grease a 9x13-inch baking dish. Spread the thawed, patted-dry hashbrowns in an even layer, pressing them down lightly. Sprinkle the cooked sausage, diced bell pepper, and onion evenly over the hashbrowns.

3. Whisk the custard. In a large bowl, whisk together the eggs, milk, salt, pepper, garlic powder, and paprika until smooth. Stir in 1 1/2 cups of the shredded cheddar.

4. Pour and top. Pour the egg mixture evenly over the hashbrown and sausage layers. Sprinkle the remaining 1/2 cup cheddar over the top.

5. Chill overnight. Cover the dish tightly with foil or plastic wrap and refrigerate for at least 8 hours, or overnight. This lets the hashbrowns soak up the custard for the perfect set.

6. Bake on Christmas morning. Remove the dish from the fridge 30 minutes before baking. Preheat the oven to 375°F (190°C). Bake uncovered for 45–50 minutes, until the center is set and the top is deep golden and bubbly.

7. Rest and serve. Let the casserole rest for 10 minutes so it slices cleanly. Garnish with sliced scallions and serve warm with hot sauce, sour cream, or ketchup on the side.

Recipe Tips

• Dry the hashbrowns well. Patting thawed hashbrowns dry with paper towels is the secret to crispy edges instead of a soggy casserole.

• Don't skip the rest time. Ten minutes of resting makes the difference between clean squares and a scrambled mess.

• Check for doneness. The center should no longer jiggle and a knife inserted in the middle should come out clean.

• Add festive color. Cherry tomatoes, roasted red peppers, or chopped fresh parsley give it a gorgeous Christmas-red-and-green finish.

Make-Ahead & Storage

This casserole is designed to be made ahead. Assemble it up to 24 hours in advance and keep it covered in the refrigerator. Leftovers keep beautifully: store in an airtight container in the fridge for up to 4 days, or freeze individual portions for up to 2 months. Reheat in the microwave or in a 350°F (175°C) oven until warmed through.

Nutrition (Estimates per Serving)

Calories: ~430 • Protein: 22 g • Carbohydrates: 24 g • Fat: 27 g • Saturated Fat: 11 g • Fiber: 2 g • Sugar: 4 g • Sodium: 780 mg. These are estimates calculated from the ingredient list and may vary based on the exact brands used.