Amazing eggs benedict casserole for 12

March 26, 2026
Written By Katherine Connolly

Katherine "Kate" Connolly is the founder of Kings Cook, a recipe developer, and a passionate home cook with a degree in nutrition science. Raised in a bustling Midwest kitchen, she believes everyone can cook with confidence. Kate specializes in creating delicious, reliable, and easy-to-follow American recipes designed for everyday life. Her mission is to help you master your kitchen and bring joy to your dinner table, one recipe at a time.

Oh, Eggs Benedict! It’s the absolute queen of classic brunch, right? But let’s be honest, making it for a crowd feels like a culinary triathlon. You’re juggling poaching perfect eggs while trying not to curdle the hollandaise. It’s stressful! That’s why I’m here today to hand you the easiest, most glorious brunch secret weapon: the eggs benedict casserole. Seriously, this invention changed my holiday hosting life forever. I’m Kate, and when I realized I could assemble this entire rich, savory bake the night before—muffins soaking up that custard while I sleep!—I knew I had found the key to being a relaxed host. This recipe gives you every single amazing flavor of the classic without demanding you stand over a simmering pot of butter right before serving. Trust me, once you try this make-ahead method, you won’t go back!

Why This Make-Ahead Eggs Benedict Casserole is Your New Brunch Hero

When I look at a recipe meant for a special occasion brunch, my main concern has always been, “Will I actually enjoy talking to my guests, or will I be rushing around apologizing for everything?” This casserole solves that problem completely. It’s designed for the real world, where you want ease and elegance to meet!

  • It delivers that perfect, classic combination—the savory ham, the fluffy bread soaking up that rich egg, and the decadent sauce—all in one pan. It’s truly a crowd pleasing breakfast disguised as something fancy.
  • It handles all the prep work while you’re distracted doing other things!

The Ultimate Make Ahead Brunch Recipe

This is why I always call it my secret weapon. You assemble the entire bottom layer—the muffins, the meat, the cheese, and pour that custard over everything—the night before serving. You cover it tight and let it chill. That overnight soak ensures every single piece of English muffin gets perfectly tenderized. When you wake up, all that’s left is sliding it into the oven! It makes you look like a hosting superstar without breaking a sweat.

Stress-Free Simple Hollandaise Sauce Recipe

Poaching and emulsifying hollandaise? No, thank you, not before 10 AM! The genius move here is using the blender for the sauce. Seriously, it takes about two minutes, and the result is wonderfully velvety and zesty. It’s a simple hollandaise sauce recipe that tastes wonderfully authentic, but it removes the constant whisking fear from your morning routine. You just drizzle it on right before serving!

Gathering Ingredients for Your Eggs Benedict Casserole

Okay, gathering ingredients is half the fun, right? Especially when you know the final result will save you so much stress later. This recipe is built on standard, easy-to-find items—no secret trips to specialty stores needed, promise! Remember, precision matters here, especially with our wet and dry layers. When assembling the night before, make sure everything is ready to go so you can just mix and chill. It’s all about setting yourself up for success the next morning!

For the English Muffin Casserole Base

You’ll need to prep your bread and meat ahead of time so they are ready to soak up that egg mixture. Don’t skip cubing the muffins; they need to be the right size to absorb the liquid properly!

  • 12 English muffins, cut into 1-inch cubes (Don’t use bread that’s too soft!)
  • 1 pound Canadian bacon or good quality ham, cut into small pieces
  • 1 cup shredded Gruyère cheese (or Swiss, if that’s what you have!)
  • 1 cup shredded sharp cheddar cheese
  • 12 large eggs—make sure they are large!
  • 3 cups whole milk
  • 1 teaspoon Dijon mustard (This adds such a lovely tang.)
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon nutmeg (Just a tiny pinch makes a huge difference!)

For the Easy Blender Hollandaise Sauce

This is the magic potion we whip up right before serving! Everything in here is pantry-friendly, but please make sure your butter is fully melted before you start blending the yolks.

  • 1/2 cup (1 stick) unsalted butter, fully melted
  • 3 large egg yolks
  • 1 tablespoon fresh lemon juice (Fresh is best, trust me on this one.)
  • Pinch of salt and cayenne pepper
  • Fresh chives, for garnish once it’s drizzled on top

Step-by-Step Instructions for the Overnight Eggs Benedict Casserole

Now for the fun part—putting it all together! If you are making this ahead (which you absolutely should be!), pay close attention to the chilling step; it’s non-negotiable for truly tender results. Following these steps carefully ensures your eggs benedict casserole transforms perfectly from fridge to oven. I even checked with my friends over at Better Home Base to make sure our layering techniques matched up, and we’re on the same page!

Assembling the Make Ahead Breakfast Casserole

First things first, grab that 9×13 inch baking dish and give it a good coating of grease—I usually use cooking spray, but softened butter works too. Next, sprinkle those cubed muffins evenly across the bottom. Toss on your Canadian bacon pieces, then sprinkle over the Gruyère/Swiss, followed by the sharp cheddar sprinkled right on top. In a separate, big bowl, whisk those 12 eggs, milk, Dijon, salt, pepper, and nutmeg until they look pale yellow and totally happy together. Slowly, slowly, pour that egg mixture right over your layers. Gently press down on the muffins so they drink up all that liquid goodness. Then, cover it up tight with plastic wrap and stick it in the fridge. Ideally, let it chill for at least 8 hours, or all the way overnight!

Baking the Eggs Benedict Bake

When you’re ready to serve—don’t forget to let the chill come off it a little bit while the oven heats up! Preheat your oven to 350 degrees F. Take that plastic wrap off—we don’t want melting plastic in our beautiful eggs benedict bake! Bake this uncovered for about 45 to 55 minutes. You’re looking for it to be nicely puffed up and the center should look set, kind of like a big fluffy square of custard. If the top is getting too dark before the middle is done, just tent it loosely with foil.

Preparing the Simple Hollandaise Sauce Recipe

While that casserole is getting golden brown, let’s make that ridiculously fast hollandaise! You need warm melted butter—I usually melt mine in the microwave in short bursts. In your blender, combine the egg yolks, fresh lemon juice, salt, and cayenne. Zip that on low for about 30 seconds until it’s pale. Now, the key part: with the blender running on low, drizzle that warm butter in a super thin, slow stream. If you dump the butter in, it will split! Keep going until it’s thick and creamy. If you think it’s too stiff, just a tiny splash of warm water fixes it right up. I have a little trick detailed over here if you want more blender hollandaise sauce tips!

Serving Your Crowd Pleasing Breakfast

Once the casserole comes out, let it rest on the counter for about five minutes before you slice it. This helps it firm up just enough so the pieces hold their shape. Slice generous squares, pile them high on the plate, and drizzle that lovely, zesty blender hollandaise right over the top. Don’t forget a sprinkle of fresh chives for that pop of color. This is truly the easiest way to serve a crowd pleasing breakfast!

Tips for the Perfect Eggs Benedict Casserole

I love giving you guys extra secret knowledge so your dish turns out absolutely flawless every single time. Since this is such a centerpiece dish for brunch, let’s make sure it lands perfectly! Below are a few extra bits of wisdom I pulled straight from my notes on making the ultimate eggs benedict casserole for holiday mornings.

Maximizing Overnight Soak Time

Remember how I said overnight chilling is key? Well, that extra time is what makes the difference between a slightly soggy bottom and a perfectly tender, custardy base. When you press those muffin cubes down after pouring the egg mixture over everything, really give them a good squish. You want them submerged as much as possible. If you’re short on time, aim for at least four hours in the fridge, but gosh, overnight is just magical for absorbing all that flavor!

English Muffin Casserole Ingredient Swaps

While English muffins are the traditional route for this casserole, sometimes you just have a beautiful loaf of brioche or maybe some day-old croissants laying around. If you use croissants instead of muffins in your English muffin casserole, you need to watch your baking time. Croissants are lighter and absorb liquid faster, so they might bake a bit quicker. I would start checking for doneness about 5 to 10 minutes earlier than the recipe calls for. Also, if you baked it too long, check out the amazing advice on overnight prep from my friends over at The Food Charlatan!

Storage and Reheating Your Eggs Benedict Bake

One of the best things about making a big casserole like this is having leftovers! It makes the next few days of breakfast so easy, though you know it never tastes quite as good as when that hollandaise sauce is freshly blended, right?

If you have any leftover eggs benedict bake, just cover the dish tightly with foil or scrape the casserole into an airtight container. It will keep beautifully in the fridge for up to three days. When morning rolls around and you’re ready for a quick bite, cover it loosely with foil again and pop it back into a 325 degrees F oven until it’s heated through. That usually takes about 20 to 25 minutes, depending on how chilled it is.

Frequently Asked Questions About This Savory Egg Bake

I know you might still have a few questions swirling around before you commit to making this for your next big brunch! It’s totally normal when switching from classic methods to a big casserole format. That’s why I’ve collected the questions I get asked most often about this amazing eggs benedict casserole. If you’ve perfected the recipe, feel free to check out more of my favorite breakfast and brunch recipes here!

Can I assemble the eggs benedict casserole more than one day ahead?

I wouldn’t recommend going past overnight, or about 12 to 14 hours maximum. The magic really happens when the muffins soak just long enough to get tender but don’t completely dissolve into mush from sitting in the liquid custard. If you go more than 24 hours, the texture can start to get a little sad when it bakes up.

What is the best cheese substitute for this Canadian Bacon Breakfast Bake?

While Gruyère and sharp cheddar give you that incredible nutty, tangy flavor, feel free to swap them out! If you need a milder taste, Monterey Jack is a fantastic melter that blends right in. If Provolone is what you have on hand, that works great too, especially if you like a slightly stretchier cheese pull. It handles the richness of the Canadian Bacon Breakfast Bake really well!

Can I skip the hollandaise sauce on the eggs benedict casserole?

Oh, you absolutely can, and many people do! If the blender sauce still feels like too much, just bake the casserole as directed. Once it’s resting, you can spoon a little bit of good quality mushroom or sage gravy over your slice instead. Or—and this is my little secret—just make sure you let the eggs soak until the very last minute before baking, and you’ll get slightly runnier eggs inside the bake itself, which acts like a natural sauce!

Nutritional Estimates for the Eggs Benedict Casserole with Hollandaise Sauce

I always get asked about the heavy hitters in terms of nutrition for rich brunch items like this, because let’s be real, this casserole with hollandaise sauce is decadent! I want to be super clear that these numbers are just estimates based on my recipe calculation, so they can vary depending on the exact brands of ingredients you use. But, for a generous slice, you’re looking at about 450 calories. It packs 22 grams of protein and 30 grams of fat, which is what makes it so satisfying. It’s definitely a special occasion dish, not your every-day skinny meal, but totally worth it!

Share Your Weekend Brunch Recipes

Seriously, this is the dish that takes me from stressed-out host to happily mingling host, and I hope it does the same for you and your family! You just can’t beat waking up knowing breakfast is already done, right?

Once you’ve made this spectacular eggs benedict casserole for your next gathering, I really want to hear all about it. Did the blender hollandaise cooperate? Did the kids gobble up their portions before the adults even sat down? Tell me everything in the comments below!

If you snapped a picture of your beautiful, golden-brown bake topped with that creamy sauce, please share it on Instagram and don’t forget to tag me! Seeing your triumphs in the kitchen is what Kings Cook is all about. It shows me you’re feeling confident and getting joyful in your cooking space.

If you’re looking for more ways to keep that brunch magic going all week long—or maybe need something faster than a casserole for Tuesday night—go check out my collection of weeknight dinner recipes. Happy cooking, friend!

Print

Make-Ahead Overnight Eggs Benedict Casserole with Easy Blender Hollandaise

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

This make-ahead Eggs Benedict Casserole delivers all the rich flavor of the classic brunch dish without the stress of poaching eggs. Assemble it the night before for a simple, crowd-pleasing breakfast bake topped with a quick blender hollandaise sauce.

  • Author: kate
  • Prep Time: 20 min
  • Cook Time: 55 min
  • Total Time: 1 hr 15 min
  • Yield: 10 servings 1x
  • Category: Brunch
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale
  • 12 English muffins, cut into 1-inch cubes
  • 1 pound Canadian bacon or ham, cut into small pieces
  • 1 cup shredded Gruyère cheese (or Swiss cheese)
  • 1 cup shredded sharp cheddar cheese
  • 12 large eggs
  • 3 cups whole milk
  • 1 teaspoon Dijon mustard
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1/4 teaspoon nutmeg
  • For the Hollandaise Sauce:
  • 1/2 cup (1 stick) unsalted butter
  • 3 large egg yolks
  • 1 tablespoon fresh lemon juice
  • Pinch of salt and cayenne pepper
  • Fresh chives, for garnish

Instructions

  1. Grease a 9×13 inch baking dish. Distribute the English muffin cubes evenly over the bottom of the prepared dish.
  2. Scatter the Canadian bacon pieces and the Gruyère/Swiss cheese over the muffins. Sprinkle the cheddar cheese on top.
  3. In a large bowl, whisk together the eggs, milk, Dijon mustard, salt, pepper, and nutmeg until fully combined.
  4. Slowly pour the egg mixture evenly over the layered ingredients in the baking dish. Gently press down on the muffins to help them absorb the liquid.
  5. Cover the dish tightly with plastic wrap. Refrigerate for at least 4 hours, or preferably overnight.
  6. When ready to bake, preheat your oven to 350 degrees F. Remove the plastic wrap.
  7. Bake the casserole uncovered for 45 to 55 minutes, or until the casserole is puffed, set in the center, and lightly golden brown.
  8. While the casserole bakes, prepare the hollandaise sauce. Melt the butter in a small saucepan over low heat, or microwave until melted.
  9. In a blender, combine the egg yolks, lemon juice, salt, and cayenne pepper. Blend for about 30 seconds until pale yellow.
  10. With the blender running on low speed, slowly drizzle the warm melted butter into the yolk mixture in a thin, steady stream until the sauce is thick and emulsified. Stir in a tiny splash of warm water if the sauce is too thick.
  11. Let the casserole rest for 5 minutes after removing it from the oven. Slice and serve warm, topped generously with the blender hollandaise sauce and fresh chives.

Notes

  • For the best overnight results, assemble the casserole the night before and keep it refrigerated until you are ready to bake it in the morning.
  • If you use croissants instead of English muffins, reduce the baking time by about 5 to 10 minutes, as croissants absorb liquid faster.
  • To reheat leftovers, cover the casserole loosely with foil and bake at 325 degrees F until heated through.

Nutrition

  • Serving Size: 1 slice
  • Calories: 450
  • Sugar: 3
  • Sodium: 750
  • Fat: 30
  • Saturated Fat: 16
  • Unsaturated Fat: 14
  • Trans Fat: 1
  • Carbohydrates: 25
  • Fiber: 2
  • Protein: 22
  • Cholesterol: 280

Did you make this recipe?

Share a photo and tag us — we can't wait to see what you've made!

Leave a Comment

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star