Overnight Amish Breakfast Casserole (Printable Version)

Hearty layered casserole with potatoes, sausage, eggs, and cheese ready overnight for easy brunch 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 Make It:

01 - In a large skillet over medium heat, cook the sausage, breaking it up with a spoon, until browned and cooked through, approximately 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 until well combined.
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 - In the morning, 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 Advice:

01 -
  • The magic happens overnight in your fridge, so morning chaos turns into a simple bake-and-serve situation.
  • It feeds a crowd without you standing at the stove like a short-order cook, which honestly feels like winning at breakfast.
  • Layers of sausage, cheese, and crispy potatoes mean every bite tastes completely different, keeping things interesting across twelve servings.
02 -
  • Thawed hash browns are absolutely essential—I once skipped this step thinking frozen would be fine, and the casserole came out watery and disappointing, a mistake that taught me why recipes ask what they ask.
  • The overnight refrigeration isn't just convenience; it's when the egg mixture truly permeates everything, creating that unified texture that makes this dish so special and different from casseroles baked fresh.
03 -
  • Remove the casserole from the fridge 15 minutes before baking—this seemingly small step prevents a cold center and ensures even cooking throughout.
  • If your kitchen runs cold, set the casserole on a preheated baking sheet before sliding it into the oven; this jump-starts the cooking from the bottom and prevents undercooked edges.
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