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The Ultimate Overnight Breakfast Casserole


  • Author: Emma
  • Total Time: 95 minutes
  • Yield: 8 servings 1x
  • Diet: Gluten-Free Option

Description

A stress-free breakfast casserole that can be prepared the night before for a warm family meal in the morning.


Ingredients

Scale
  • 1 pound breakfast sausage (turkey, chicken, lean beef, or plant-based)
  • 1 package frozen hash browns (about 30 oz)
  • 8 large eggs
  • 1 cup milk (whole or 2%)
  • 1 cup sour cream
  • 2 cups shredded cheddar cheese
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1/4 cup chopped green onions
  • Optional: 1 small diced bell pepper, 1 cup sautéed mushrooms, 1 cup fresh spinach, 1/2 cup diced tomatoes, 1 teaspoon onion powder or garlic powder, 1/2 teaspoon smoked paprika, 1 to 1 1/2 cups mixed shredded cheese

Instructions

  1. Cook the sausage until browned and cooked through.
  2. In a mixing bowl, whisk together eggs, milk, sour cream, salt, and pepper.
  3. Grease a 9×13-inch baking dish and layer half of the frozen hash browns, half of the cooked sausage, and half of the shredded cheese.
  4. Repeat the layering with the remaining hash browns, sausage, and cheese.
  5. Pour the egg mixture evenly over the layers.
  6. Cover with foil and refrigerate overnight.
  7. In the morning, preheat oven to 350°F (175°C) and bake covered for 45 minutes.
  8. Remove foil and bake for an additional 20–25 minutes until golden and set.
  9. Let rest for 10 minutes before serving with green onions on top.

Notes

For best results, use frozen hash browns and allow the casserole to rest before slicing.

  • Prep Time: 30 minutes
  • Cook Time: 65 minutes
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 slice
  • Calories: 350
  • Sugar: 3g
  • Sodium: 600mg
  • Fat: 20g
  • Saturated Fat: 10g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 25g
  • Fiber: 2g
  • Protein: 18g
  • Cholesterol: 200mg

Keywords: breakfast casserole, overnight breakfast, easy breakfast, family meal