Overnight Eggs Benedict Casserole

The kitchen was quiet at midnight when I layered the first English muffin pieces into the baking dish. My husband had wandered in, rubbing sleep from his eyes, asking what I was doing making breakfast at such an unreasonable hour. I explained that tomorrow's brunch would be worth the lost sleep, a lesson learned from countless holiday mornings where I'd been stuck in the kitchen while guests mingled elsewhere.

Last Easter, my sister-in-law took one bite and actually went silent for a full minute. She later confessed she'd been skeptical about a casserole version of her restaurant favorite, but the way the edges got crispy while staying creamy underneath had won her over completely.

Ingredients

• 6 English muffins: Split them into pieces that are roughly bite-sized. They will soften beautifully as they soak up the custard overnight.
• 12 oz Canadian bacon: Diced small so every forkful gets some of that smoky, savory protein.
• 8 large eggs: Room temperature eggs whisk into the custard more smoothly.
• 2 cups whole milk and 1 cup heavy cream: This combination creates the luxurious texture that makes the casserole feel special.
• 1 teaspoon Dijon mustard: Adds a subtle depth that keeps the rich flavors from becoming one-note.
• 4 egg yolks: For the Hollandaise. Fresher eggs make for a more stable sauce.
• ½ cup unsalted butter: Melt it completely before drizzling into the yolks. Hot butter helps cook the yolks slightly as you whisk.

Instructions

Build the layers:

Grease your baking dish thoroughly. Half the English muffin pieces go in first, followed by half the bacon. Repeat with the remaining pieces.

Whisk the custard:

Beat the eggs with milk, cream, mustard, salt, pepper, and paprika until no streaks remain. Pour this slowly over the casserole.

Press and chill:

Use your hands to press down gently so every piece of bread gets submerged. Cover tightly and let it rest in the refrigerator overnight.

Bake until golden:

Let the dish sit at room temperature while the oven heats to 375°F. Bake covered for 30 minutes, then uncover for 15 more minutes.

Make the Hollandaise:

Whisk yolks and lemon juice over simmering water until thickened. Drizzle in hot butter slowly, whisking constantly, until the sauce becomes silky and smooth.

Save

Now it's become our Christmas morning tradition. The kids stumble into the kitchen still in pajamas, following the smell, and we eat standing up around the island because no one wants to wait for a formal table.

Make It Your Own

Swapping in spinach or mushrooms turns this into a vegetarian main that still feels indulgent. I have also used diced ham in a pinch, though Canadian bacon has that perfect balance of leanness and flavor.

The Art of Hollandaise

The double boiler method feels more forgiving than direct heat. Take your time with the butter, that slow drizzle is what keeps the sauce emulsified and creamy rather than separating into a greasy mess.

Serving Suggestions

A bitter green salad with bright vinaigrette cuts through the richness beautifully. Fresh fruit on the side adds color and reminds everyone that brunch is supposed to feel lighter than dinner.

• Warm your plates before serving so the sauce stays luscious longer.
• Extra paprika on top adds a lovely color contrast.
• This casserole actually tastes better as leftovers, if you have any.

Save

There is something deeply satisfying about serving a dish that looks and tastes like you spent hours hovering over it, when really you were fast asleep while it did all the work.

Recipe FAQs

→ Can I prepare this the night before?

Yes, this dish is designed to be assembled the night before and refrigerated overnight. The extended chilling time allows the English muffins to fully absorb the egg custard, resulting in a perfectly moist and fluffy texture after baking.

→ Can I make this vegetarian?

Absolutely. Substitute the Canadian bacon with sautéed spinach, mushrooms, or diced vegetables like bell peppers and onions. The vegetarian version maintains all the creamy, comforting elements of the original.

→ How do I store leftovers?

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat individual portions in the microwave at 50% power to prevent overheating, or warm in a 350°F oven until heated through. Hollandaise is best made fresh, but you can store it separately and gently reheat.

→ Can I use a different type of bread?

While English muffins provide the classic Eggs Benedict experience, you can substitute with croissant pieces for extra richness, sourdough cubes for tangy depth, or even gluten-free English muffins to accommodate dietary restrictions. Adjust baking time slightly as different breads may absorb custard at different rates.

→ What's the best way to reheat Hollandaise sauce?

Hollandaise sauce can break if overheated. Gently reheat in a double boiler over low heat, whisking constantly. Alternatively, microwave in 10-second intervals, whisking between each burst. If the sauce separates, whisk in a teaspoon of cold water or lemon juice to emulsify it again.

→ Can I freeze this casserole?

For best results, freeze before baking. Assemble the casserole, wrap tightly in plastic and foil, and freeze for up to 2 months. Thaw overnight in the refrigerator before baking as directed. The texture may be slightly different from fresh, but it will still be delicious.