Overnight Sausage and Egg Breakfast Casserole Recipe

There’s something incredibly delightful about waking up to a home brimming with the inviting aroma of an overnight sausage and egg breakfast casserole. This breakfast delight is a hassle-free option for busy mornings, offering a savory mix of sausage, eggs, and melted cheese that guarantees to kickstart your day on a delicious note.
I remember the first time I made this recipe for a family brunch. My grandmother beamed with nostalgia as she reminisced about the similar dishes she prepared during festive mornings. The casserole quickly made its way into our family tradition, lovingly passed down and enjoyed through generations.
Why You’ll Love This Recipe
This casserole is the epitome of convenience and comfort. It allows you to prepare everything the night before, giving you more time to enjoy morning coffee and cherish moments with loved ones. The savory blend of crispy sausage, fluffy eggs, and oozy cheese creates a mouthwatering symphony of flavors that is irresistible.
Ingredients Notes
To ensure the best flavor, use high-quality sausage meat. If you prefer a leaner option, turkey sausage is an excellent substitute. Fresh eggs are best, and for the cheese lovers, a sharp cheddar enhances the depth of flavor. Don’t forget a touch of herbs to elevate this dish further.
Recipe Steps
Step 1
Begin by browning the sausage in a skillet over medium heat. Drain any excess fat. This helps to ensure your casserole isn’t too oily.
Step 2
In a large bowl, whisk together eggs, milk, and your preferred seasonings. A pinch of salt and pepper enhances the overall profile without overwhelming the dish.
Step 3
Layer the cubed bread in a greased 9×13 inch baking dish. The bread serves as a sturdy base, soaking up all the flavorful egg mixture.
Step 4
Sprinkle the cooked sausage evenly over the bread cubes, followed by a generous layer of cheese. This ensures every bite has a perfect mix of all ingredients.
Step 5
Pour the egg mixture over the top. Cover the dish and refrigerate overnight. In the morning, bake at 350°F (175°C) until the center is set and the top is golden brown.
Storage Options
Leftover casserole can be stored in an airtight container in the refrigerator for up to three days. To freeze, wrap portions securely with plastic wrap and aluminum foil for up to two months. Reheat in the oven to restore its freshly baked texture.
Variations & Substitutions
For a vegetarian twist, swap sausage with sautéed mushrooms and spinach. Those avoiding dairy can use plant-based milk and cheese. Feel adventurous by adding roasted red peppers or jalapeños for a spicy kick.
Frequently Asked Questions
Can I make this casserole gluten-free?
Absolutely! Substitute the bread with gluten-free varieties. Ensure all spices and sausages used are certified gluten-free to cater to dietary needs.
What can I serve with this casserole?
Pair it with a fresh fruit salad for a balance of flavors. It also pairs well with a light side of crispy bacon or hash browns, enriching your brunch table.
Why refrigerate overnight?
Allowing the casserole to sit overnight helps the ingredients to meld, creating a richer, more cohesive flavor. This also allows the bread to fully absorb the egg mixture, resulting in a tender and flavorful casserole.

Overnight Sausage and Egg Breakfast Casserole Recipe
Ingredients
Main Ingredients
- 1.5 pounds breakfast sausage crumbled and cooked
- 8 large eggs
- 2 cups shredded cheddar cheese
- 3 cups whole milk
- 6 slices bread cubed
Instructions
Preparation Steps
- Preheat your oven to 350°F (175°C).
- In a large skillet, cook the sausage over medium heat until browned. Drain any excess grease.
- In a large bowl, whisk together eggs and milk. Stir in cheese and cooked sausage.
- Place the bread cubes in a greased 9x13 inch baking dish. Pour the egg mixture over the bread.
- Cover and refrigerate overnight. In the morning, bake in preheated oven for 60 minutes or until eggs are set.