Everything Bagel Overnight Breakfast Bake

This Everything Bagel Make-Ahead Breakfast Casserole is the quintessential easy breakfast or brunch recipe, transforming your beloved everything bagel into a hearty, family-sized meal. Prepare it in advance for stress-free entertaining or a convenient weekday treat!

If you share my profound love for breakfast—the rich aroma of sizzling bacon, the creamy delight of cream cheese, and the satisfying chew of a perfectly toasted bagel—then you’re in for an absolute treat. This incredible Everything Bagel Make-Ahead Breakfast Casserole captures all the flavors of your favorite breakfast sandwich and elevates it into a comforting, oven-baked masterpiece.

The true genius of this recipe lies in its “make-ahead” nature. Similar to our popular ham and cheese English muffin breakfast casserole or the indulgent cinnamon roll French toast casserole, you simply assemble all the ingredients the night before. Layer the savory components, pour the custardy egg mixture over everything, and let it chill in the refrigerator overnight. Imagine waking up, pulling your prepared casserole from the fridge, and effortlessly baking a gourmet breakfast while still in your pajamas.

This convenience makes it an exceptional choice for holidays like Mother’s Day, Easter, Christmas, or New Year’s brunch, as well as any party or gathering where you need to feed a crowd without the morning rush. The freedom of preparing everything ahead of time means less stress and more time to enjoy precious moments with family and friends. And if you’re like me, even for a small family, it’s a delightful dish that provides delicious breakfasts and lunches for days!

For those who appreciate the simplicity and deliciousness of easy breakfast casseroles, don’t miss our other fantastic recipes such as the overnight French toast bake, the festive make ahead eggnog breakfast casserole, the healthy sausage and spinach crustless quiche, and the low carb ham and cheese crustless quiche.

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Why This Everything Bagel Breakfast Casserole Will Be Your New Favorite

This casserole is more than just a recipe; it’s a breakfast game-changer. Here’s why you’ll fall in love with it:

• Unbeatable Flavor Profile: It combines all the iconic tastes of an everything bagel—garlic, onion, sesame, poppy seeds, and salt—with classic breakfast staples like eggs, bacon, and cheese. The result is a symphony of savory notes in every bite.
• Effortless Make-Ahead Convenience: The biggest advantage is the ability to assemble it entirely the night before. This eliminates morning stress, allowing you to relax and enjoy your breakfast or host with ease. Perfect for busy weekdays or special holiday brunches.
• Feeds a Crowd: A single 9×13 inch casserole dish generously serves 12 people, making it ideal for family gatherings, potlucks, or holiday celebrations.
• Customizable to Your Liking: While we love the bacon and Gruyere combination, this recipe is incredibly adaptable. Swap out meats, cheeses, or even add vegetables to suit your taste or dietary preferences.
• Comfort Food at Its Best: Warm, hearty, and satisfying, this casserole offers true comfort. It’s the perfect dish to start a chilly morning or to share with loved ones.

Essential Ingredients for Your Savory Casserole

Crafting this incredible breakfast casserole requires a few key components that come together to create a truly unforgettable dish. Here’s a closer look at what you’ll need and why each ingredient plays a vital role:

• Everything Bagels: These are the star of the show! The unique blend of poppy seeds, sesame seeds, dried garlic, dried onion, and coarse salt baked onto the bagels infuses the entire casserole with an unparalleled savory depth. We recommend dicing them into 1-inch cubes to ensure they absorb the egg mixture beautifully and hold their texture. While everything bagels are preferred for their distinct flavor, feel free to substitute with plain, sesame, or even a mix of your favorite bagels if you wish to experiment.
• Bacon: Crispy, salty bacon bits are essential for that classic breakfast flavor and satisfying crunch. You’ll need to cook and chop your bacon before adding it to the casserole. Pre-cooking ensures it stays nice and crisp rather than becoming soggy during the baking process. For a different twist, you could also use cooked breakfast sausage, diced ham, or even turkey bacon.
• Gruyere Cheese: This is one of my personal favorites for its wonderfully nutty and slightly sweet flavor, which melts beautifully and adds incredible richness. It’s similar in profile to Swiss cheese, so if Gruyere is hard to find, good quality Swiss cheese makes an excellent substitute. If you’re not a fan of Swiss or Gruyere, feel free to use your favorite firm, meltable cheese such as sharp cheddar, creamy Gouda (smoked Gouda is exceptional!), or Fontina for a different creamy texture.
• Cream Cheese: What’s an everything bagel without cream cheese? Dollops of softened cream cheese are strategically placed throughout the casserole, melting into pockets of tangy, creamy goodness that perfectly complement the savory bagels and other ingredients. Ensure it’s softened for easy distribution.
• Eggs: The foundation of any great breakfast casserole, eggs act as the binder that holds everything together. Whisked with heavy cream, they create a rich, custardy base that coats the bagels and cheese, delivering that satisfying breakfast sandwich-with-egg flavor in every forkful.
• Heavy Cream: Mixed with the eggs, heavy cream is crucial for achieving a rich, luxurious custard. It contributes to the casserole’s overall moisture and helps everything bake together into a cohesive, flavorful dish. For a slightly lighter option, whole milk can be used, but heavy cream truly enhances the texture and taste.
• Salt & Pepper: Essential seasonings to enhance all the other flavors. Adjust to your taste, remembering that bacon and everything bagels already contribute some saltiness.
• Chives: These are primarily for garnish, but I highly recommend not skipping them! Freshly chopped chives add a delicate oniony flavor and a vibrant pop of color, reminiscent of cream cheese and chives on a bagel. They elevate the dish from simple to gourmet.

Step-by-Step Guide: Preparing Your Everything Bagel Breakfast Casserole

This is a wonderfully straightforward breakfast casserole to prepare in advance, making your mornings infinitely easier. Just follow these simple steps to assemble it the night before and bake it fresh when you’re ready to serve.

1. Step 1: Prepare the Dish. Begin by lightly greasing a standard 13×9 inch casserole dish with a pat of butter or a generous spray of nonstick cooking spray. This ensures your delicious casserole won’t stick and will be easy to serve.
2. Step 2: Layer the Dry Ingredients. Distribute approximately half of your cubed everything bagels evenly across the bottom of the prepared casserole dish. Follow with a sprinkle of half of the cooked and diced bacon. Next, layer half of the shredded Gruyere cheese, and then dot with half of the cubed, softened cream cheese.
3. Step 3: Repeat the Layers. Create a second identical layer using the remaining everything bagel cubes, bacon, Gruyere cheese, and cream cheese. Ensure an even distribution of all components for balanced flavor in every serving.
4. Step 4: Whisk Together the Wet Ingredients. In a separate medium-sized bowl, combine the large eggs, heavy cream, ½ teaspoon of salt, and ¼ teaspoon of pepper. Whisk vigorously until all ingredients are thoroughly combined and the mixture is smooth and slightly frothy.
5. Step 5: Combine All Components. Carefully pour the egg mixture over the layered bagels, bacon, and cheeses in the casserole dish. Gently press down on the casserole contents with the back of a spoon or spatula to help the bagel pieces absorb the liquid. Ensure everything is well saturated.
6. Step 6: Refrigerate for Flavor Infusion. Tightly cover the casserole dish with plastic wrap or aluminum foil. Place it in the refrigerator to chill for a minimum of 4 hours, or ideally, overnight. This crucial step allows the bagels to fully absorb the custardy mixture, enhancing the texture and flavor.
7. Step 7: Preheat the Oven. When you’re ready to bake, preheat your oven to 350 degrees F (175 degrees C).
8. Step 8: Bake to Perfection. Remove the chilled casserole from the refrigerator. Keep it covered with aluminum foil and place it in the preheated oven. Bake for 40 minutes. After this initial baking period, carefully remove the foil and continue to bake for another 15 minutes, or until the casserole is golden brown, puffed up, and cooked through, with the cheese visibly melted and bubbly.
9. Step 9: Cool and Serve. Once baked, remove the casserole from the oven and let it cool for about 10 minutes before slicing and serving. This resting time allows the casserole to set, making it easier to cut. Garnish with freshly chopped chives for a burst of fresh flavor and color, then enjoy!

Customization Ideas: Make It Your Own!

While our original recipe for this Everything Bagel Breakfast Casserole uses bacon and Gruyere cheese, the beauty of a casserole is its versatility. Think of it as a delicious breakfast sandwich in baked form, giving you full creative freedom to experiment with your favorite ingredients!

Meat Substitutions:

Feel free to swap out the bacon for any other breakfast meat you enjoy. Just remember, **all meat must be fully cooked before adding it to the casserole** to ensure proper cooking and texture:

• Breakfast Sausage: Crumbled and cooked breakfast sausage (pork or turkey) adds a hearty, savory depth.
• Diced Ham: Leftover holiday ham or deli ham, diced into small pieces, works wonderfully.
• Turkey Bacon: A lighter alternative to traditional bacon, offering a similar salty, smoky flavor.
• Chorizo: For a spicy kick, cooked and crumbled chorizo sausage can add an exciting new dimension.

Cheese Variations:

We love the nutty notes of Gruyere, but the cheese possibilities are endless. Choose a firm, good-melting cheese that complements the savory bagel flavors:

• Cheddar Cheese: Sharp or mild, cheddar is a classic choice that offers a familiar, comforting taste.
• Fontina Cheese: Known for its exceptional melting quality and mild, buttery flavor.
• Gouda Cheese: A creamy, slightly sweet cheese that melts beautifully. Smoked Gouda is an especially delicious option, adding a wonderful smoky aroma.
• Monterey Jack: A mild, semi-hard cheese that melts quickly and blends well with other flavors.
• Pepper Jack: For those who enjoy a little heat, Pepper Jack cheese adds a subtle spice.

I would strongly recommend sticking with cream cheese for this recipe, as it provides that essential tang and creamy texture that perfectly evokes the bagel experience.

Vegetable Additions:

Boost the nutritional value and add extra flavor with some cooked vegetables:

• Spinach: Wilted and squeezed dry spinach.
• Bell Peppers: Sautéed diced bell peppers (any color).
• Onions: Caramelized or sautéed onions add sweetness and depth.
• Mushrooms: Sautéed sliced mushrooms bring an earthy umami flavor.

Tips for the Perfect Everything Bagel Casserole

• Don’t Skimp on the Soak: The overnight refrigeration is key. It allows the bagels to fully absorb the egg mixture, resulting in a tender, custardy texture rather than a dry or soggy one.
• Cook Your Meat First: Whether it’s bacon, sausage, or ham, ensure your chosen meat is fully cooked and drained of excess fat before adding it to the casserole. This prevents a greasy final product and ensures the best texture.
• Soften the Cream Cheese: Room temperature cream cheese will be much easier to cube and distribute evenly throughout the casserole, ensuring creamy pockets in every bite.
• Press Down Gently: After pouring the egg mixture, gently press the bagel pieces down. This helps them absorb the liquid more efficiently and ensures no dry spots in the final casserole.
• Let It Rest: Just like a roast, letting the casserole cool for 10 minutes after baking allows it to set. This makes for cleaner slices and a better overall presentation.

How to Store and Reheat Your Casserole

One of the many benefits of this casserole is how well it stores, making it perfect for meal prepping or enjoying leftovers:

• Storing Leftovers: Once the baked casserole has cooled completely to room temperature, wrap it tightly with plastic wrap or transfer individual slices to an airtight container. Store in the refrigerator for up to 3 days.
• Reheating the Whole Casserole: To reheat a larger portion or the entire leftover casserole, preheat your oven to 350 degrees F (175 degrees C). Place the casserole dish (covered with aluminum foil to prevent drying out) in the oven and bake for 15-20 minutes, or until thoroughly warmed through.
• Reheating Individual Slices: For quick reheating, place a single slice on a microwave-safe plate. Microwave on high for 1.5 to 2.5 minutes, or until hot. Cooking time may vary depending on your microwave’s wattage.

Everything Bagel Make Ahead Breakfast Casserole Recipe Card

This simple make ahead breakfast casserole brings together everything you love about breakfast: savory everything bagels, crispy bacon, creamy cheeses, and fluffy eggs, all baked into one delightful dish. It’s an easy, impressive recipe perfect for any occasion!

Prep Time: 30 mins

Cook Time: 1 hour

Total Time: 1 hour 30 mins

Servings: 12 slices

Created By: Kat Jeter & Melinda Machado

Print Recipe

Ingredients

• 5 Everything bagels, cut into 1-inch cubes
• 8 ounces Bacon, cooked and diced
• 2 cups Gruyere Cheese, shredded
• 8 ounces Cream cheese, cut into 1-inch cubes (softened)
• 8 large Eggs
• 2 cups Heavy Cream
• ½ teaspoon Salt
• ¼ teaspoon Pepper
• Chives for garnish

Instructions

1. Grease a 13×9 inch casserole dish with butter or nonstick spray.
2. Add ½ of the everything bagel cubes to the casserole dish. Sprinkle with half of the cooked bacon. Then layer with half of the shredded Gruyere, and dot with ½ of the cubed cream cheese.
3. Repeat with another layer of everything bagel, bacon, Gruyere, and cream cheese.
4. In a bowl, combine eggs, heavy cream, salt, and pepper. Whisk until thoroughly combined.
5. Pour the egg mixture over the bagels, ensuring all pieces are covered with the liquid. Gently press down on the casserole to help the bread absorb the mixture.
6. Tightly cover the casserole dish and place in refrigerator for 4 hours or ideally, overnight.
7. Preheat oven to 350 degrees F (175 degrees C).
8. When ready to bake, cover the casserole with aluminum foil and place in the oven to bake for 40 minutes. Then, remove the foil and continue to bake for another 15 minutes, or until golden and set.
9. Let cool for 10 minutes before serving. Garnish with fresh chives and enjoy!

Nutrition

Serving: 1 slice, Calories: 539kcal, Carbohydrates: 26g, Protein: 20g, Fat: 40g, Saturated Fat: 21g, Polyunsaturated Fat: 3g, Monounsaturated Fat: 13g, Trans Fat: 1g, Cholesterol: 236mg, Sodium: 653mg, Potassium: 202mg, Fiber: 1g, Sugar: 1g, Vitamin A: 1233IU, Vitamin C: 1mg, Calcium: 294mg, Iron: 1mg

Nutrition Disclaimer: We are not certified nutritionists. Nutrition facts are an estimate and are provided as a courtesy. They are generated by an online API which recognizes ingredient names and amounts and makes calculations based on the serving size. Results may vary.

Course: Breakfast

Cuisine: American

Enjoy your delicious Everything Bagel Make-Ahead Breakfast Casserole!