Delicious Overnight Christmas Egg Casserole for a Stress-Free Holiday Brunch

Introduction

The Delicious Overnight Christmas Egg Casserole is the ultimate holiday brunch solution—packed with savory flavors, easy to assemble ahead of time, and guaranteed to keep your Christmas morning stress-free. This make-ahead breakfast ensures you can enjoy a leisurely morning with family and friends, without sacrificing a bit of flavor or festive flair.

Why This Overnight Casserole Will Be Your Holiday Hero

This egg casserole stands out for its moist, fluffy texture and its festive, crowd-pleasing flavors. Featuring a blend of eggs, cheese, bread, and your choice of sausage or ham, it bakes up beautifully golden with minimal morning effort. With everything prepared the night before, it bakes while you open gifts, so you can focus on making memories, not managing the kitchen.

Craft the Perfect Make-Ahead Base

The base of this casserole features hearty bread cubes that absorb a savory custard of eggs, milk, spices, and cheese. Lean into festive flavors by mixing in diced red and green bell peppers, scallions, or your favorite breakfast sausage. For a richer, more complex flavor, use a blend of cheeses like sharp cheddar and Gruyère.

How to Layer and Assemble for Best Results

Begin by spreading bread cubes in a greased baking dish. Layer on sautéed sausage or ham and a colorful assortment of vegetables. Pour the egg and cheese mixture evenly over the top, making sure everything is well coated. Cover tightly with foil and refrigerate overnight—the bread will soak up all that delicious custard, making every bite full of flavor.

Serving Suggestions for the Perfect Holiday Brunch

Once baked, this casserole boasts a bubbly, golden top that slices neatly and serves easily to a crowd. Garnish with fresh herbs like chives or parsley for a festive finish. Serve with a crisp green salad, a platter of fresh fruit, and perhaps some warm cinnamon rolls or pastries to round out your joyful brunch spread.

Nutritional Information and Serving Size

This recipe yields 8 generous servings. Each serving is packed with protein, thanks to the eggs and cheese, and can be made lighter with lower-fat dairy or turkey sausage. Depending on mix-ins, expect about 300–350 calories per serving—enough to fuel Christmas morning activities without weighing you down.

The Ultimate Overnight Christmas Egg Casserole (Recap)

This casserole combines the comfort of a hot breakfast with the ease of make-ahead prep—a must-have for any host seeking a festive, flavorful, and stress-free holiday morning. Simply assemble, chill overnight, bake, and serve!

💡Meal Planning Tip: Save this recipe to automatically generate an organized shopping list with all ingredients sorted by store section—perfect for efficient grocery trips and making sure you never forget a brunch essential.

Instructions

1. Butter a 9×13-inch baking dish. Spread bread cubes evenly in bottom.
2. In a skillet over medium heat, brown the sausage (or ham). Drain excess fat. Sprinkle evenly over bread cubes, followed by the diced peppers and scallions.
3. In a large bowl, whisk together eggs, milk, salt, pepper, and optional dried mustard. Stir in 1 1/2 cups shredded cheese.
4. Pour egg mixture evenly over the bread and meat. Gently press bread down so it soaks up the custard. Sprinkle remaining cheese on top and cover tightly with foil.
5. Refrigerate overnight (at least 8 hours).
6. On Christmas morning, preheat oven to 350°F (175°C). Uncover casserole and bake for 50–60 minutes or until puffed, golden, and set in the center. Let rest for 10 minutes.
7. Slice, garnish with parsley or chives, and serve warm.

Weekly Meal Planning

This casserole isn’t just for Christmas—it’s a stellar addition to any busy week. Save and schedule this recipe to plan it for weekends, potlucks, or meal prep. CookifyAI helps you consolidate ingredient needs across all your planned meals, organizes by grocery section, and prevents duplicate purchases.

Planning Benefits:

– Automatically calculates quantities for the whole week
– Organizes your shopping by store section
– Reduces forgotten items and food waste
– Streamlines meal prep

Pro tip: Schedule all your meals for the week so CookifyAI can show where ingredients overlap—for example, if you’re making sandwiches with eggs and this casserole, your shopping list will have your total egg count ready to go!

Cook and Prep Times

Prep Time: 20 minutes
Cook Time: 55 minutes
Total Time: 1 hour 15 minutes (plus overnight chilling)