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Delicious overnight breakfast casserole served in a baking dish with toppings

Overnight Breakfast Casserole with Sausage, Eggs, and Cheese

A low-effort, crowd-pleasing overnight breakfast casserole featuring sausage, eggs, and melty cheese, perfect for busy mornings or holiday brunches.
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Prep Time 30 minutes
Cook Time 50 minutes
Total Time 1 hour 20 minutes
Servings: 8 servings
Course: Breakfast, Brunch
Cuisine: American
Calories: 350
Ingredients Method Nutrition Notes

Ingredients
  

For the main mixture
  • 1 pound mild or spicy sausage Your choice of heat
  • 6 large eggs
  • 2 cups shredded cheese (cheddar, Monterey Jack, or a blend)
  • 2 teaspoons dry mustard Adds a subtle tang
  • 1 cup milk 2% milk works fine for lighter option
  • 1 loaf stale or day-old bread, cubed (sourdough, French, or challah) Use day-old bread to prevent mushiness
  • to taste salt and freshly ground black pepper
  • for garnish fresh herbs (parsley or chives)

Method
 

Preparation
  1. Preheat the oven to 350°F (175°C). Grease a 9x13-inch baking dish.
  2. Heat a large skillet over medium. Add the sausage and cook until well browned. Scoop sausage into a bowl and let cool slightly. Drain any excess fat if needed.
  3. In a mixing bowl, whisk together the eggs, milk, dry mustard, salt, and pepper until smooth.
  4. Add the cubed bread and cooked sausage to the egg mixture. Stir gently to coat the bread. Let the mixture rest for a few minutes so the bread soaks up the custard.
  5. Transfer everything to the prepared baking dish and spread evenly. Sprinkle the shredded cheese over the top.
  6. Cover the dish and refrigerate overnight, or for at least 6 hours.
Baking
  1. The next morning, remove the cover and bake uncovered for 45 to 50 minutes until golden on top and set in the center. The internal temperature should reach about 160°F.
  2. Let the casserole rest for 5 to 10 minutes before cutting. Garnish with fresh parsley or chives and serve.

Nutrition

Serving: 1Calories: 350kcalCarbohydrates: 30gProtein: 22gFat: 20gSaturated Fat: 10gSodium: 600mgFiber: 1gSugar: 2g

Notes

Store leftovers in an airtight container in the refrigerator for 3 to 4 days. To reheat, warm individual slices in the microwave for 60 to 90 seconds, or reheat a baking dish at 350°F until warmed through, about 15 to 20 minutes.

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