Overnight Amish Breakfast Casserole (Printable)

Hearty breakfast layered with sausage, eggs, potatoes, and cheese for a crowd; prep the night before for easy morning serving.

# What You Need:

→ Meats

01 - 1.5 pounds breakfast sausage, casings removed

→ Vegetables

02 - 1 medium onion, finely chopped
03 - 1 red bell pepper, diced
04 - 1 green bell pepper, diced
05 - 3 cups frozen shredded hash brown potatoes, thawed

→ Dairy

06 - 2 cups shredded cheddar cheese
07 - 1 cup shredded mozzarella cheese
08 - 2 cups whole milk

→ Eggs

09 - 12 large eggs

→ Spices & Seasonings

10 - 1 teaspoon salt
11 - 0.5 teaspoon freshly ground black pepper
12 - 0.5 teaspoon garlic powder
13 - 0.5 teaspoon smoked paprika

→ Garnish

14 - 0.25 cup chopped fresh parsley or chives

# How-To Steps:

01 - In a large skillet over medium heat, cook the sausage, breaking it up with a spoon, until browned and cooked through, about 7 to 9 minutes. Remove sausage with a slotted spoon and set aside.
02 - In the same skillet, sauté the onion and bell peppers until softened, about 4 to 5 minutes. Remove from heat.
03 - Grease a 9x13-inch baking dish. Spread the thawed hash browns evenly in the bottom.
04 - Top hash browns with cooked sausage, then the sautéed vegetables. Sprinkle cheddar and mozzarella cheeses evenly over the top.
05 - In a large bowl, whisk together eggs, milk, salt, black pepper, garlic powder, and smoked paprika.
06 - Pour the egg mixture evenly over the casserole. Cover tightly with foil or plastic wrap and refrigerate overnight for at least 8 hours.
07 - Preheat the oven to 350°F. Remove casserole from refrigerator and let stand at room temperature for 15 minutes. Bake, uncovered, for 50 to 60 minutes, or until eggs are set in the center and the top is lightly golden.
08 - Cool for 10 minutes before slicing. Garnish with fresh parsley or chives if desired.

# Expert Suggestions:

01 -
  • You can assemble it the night before, which means you actually get to sleep in instead of standing at the stove before dawn.
  • It feeds a crowd without any last-minute scrambling or keeping plates warm while you cook in batches.
  • The combination of crispy hash browns, savory sausage, and melty cheese tastes like comfort in every bite without tasting heavy.
02 -
  • Thaw those hash browns completely or your casserole will end up watery and sad—I learned this the hard way at a family gathering.
  • Letting it rest at room temperature before baking is the difference between a casserole that cooks unevenly and one that's creamy in the middle with a golden top.
03 -
  • Use really good sausage if you can—it makes the entire casserole taste better because sausage is basically the main flavor here.
  • If your oven runs hot, tent it with foil partway through baking so the top doesn't brown before the center is set.
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