Eggs Benedict Casserole

The smell of toasting English muffins on a Sunday morning has a way of pulling everyone out of bed, and this casserole captures that magic in one pan. My sister walked into the kitchen halfway through assembly once, peeked over my shoulder, and declared it looked like deconstructed Eggs Benedict got a makeover. She was not wrong, and nobody at the table complained when the hollandaise started flowing.

I brought this to a potluck brunch thinking it would be a side dish among many, and it ended up stealing the entire table. My friend Rachel asked for the recipe before she even finished her first plate, and her husband went back for thirds. There is something about the way the egg soaked muffins puff up in the oven that makes people think you worked far harder than you actually did.

Ingredients

• 6 English muffins, split and cut into 1 inch pieces: Day old muffins soak up the custard better without turning mushy, so leave them out uncovered for a few hours if you can.
• 12 oz Canadian bacon, chopped: Chop it fairly small so every bite gets that salty smoky hit without overwhelming a single forkful.
• 8 large eggs (for the casserole base): Room temperature eggs blend more smoothly into the milk mixture, which helps the custard set evenly.
• 2 cups whole milk: Whole milk gives the richest texture, and you will notice the difference compared to using something leaner.
• 1 tsp Dijon mustard plus ½ tsp for the hollandaise: Just a teaspoon adds a subtle tang that ties the whole dish together without anyone guessing it is there.
• ½ tsp salt: The Canadian bacon brings saltiness already, so go easy here and adjust after baking if needed.
• ¼ tsp ground black pepper: Freshly cracked makes a noticeable difference in a bake this simple.
• ¼ tsp paprika: Mostly for that warm golden color on top, but it adds a gentle smokiness too.
• 2 tbsp unsalted butter, melted (for the casserole): This enriches the custard and helps the top get those appealing crispy edges.
• 4 large egg yolks (for hollandaise): Save the whites for a quick egg white omelette the next day if you hate waste like I do.
• ½ cup unsalted butter, melted (for hollandaise): Pour it in very slowly, almost drop by drop at first, because patience here prevents a broken sauce.
• 1 tbsp lemon juice: Brightens the hollandaise and keeps it from tasting too heavy or flat.
• Salt and pepper to taste (for hollandaise): Season at the very end and taste carefully, since the butter and yolks already carry richness.

Instructions

Preheat and prepare the dish:

Set your oven to 350°F and grease a 9x13 inch baking dish with butter or cooking spray, making sure to get into the corners where sticking loves to happen.

Build the layers:

Scatter half the muffin pieces across the bottom, then sprinkle half the chopped Canadian bacon over them. Repeat with the remaining muffins and bacon so every layer gets its share.

Whisk the custard:

In a large bowl, whisk together the 8 eggs, milk, Dijon mustard, salt, pepper, paprika, and melted butter until everything is smooth and no streaks of yolk remain.

Soak it all:

Pour the custard evenly over the layered muffins and bacon, then gently press down with a spatula or your hands so every piece gets a chance to drink up the mixture.

Chill for better texture:

Cover the dish tightly with foil and refrigerate for at least one hour, though leaving it overnight gives the muffins time to fully absorb the custard and creates a creamier bake.

Bring to room temperature:

If you chilled it overnight, let the casserole sit on the counter while the oven preheats so the dish does not go in ice cold, which can cause uneven baking.

Bake covered, then uncovered:

Bake with the foil on for 30 minutes, then remove the foil and bake another 15 minutes until the center is set and the top has turned a lovely golden color.

Make the hollandaise while it bakes:

Set a heatproof bowl over a saucepan of barely simmering water, whisk the yolks and lemon juice together, then slowly drizzle in the melted butter while whisking constantly until the sauce thickens to a silky coating consistency.

Finish the sauce:

Stir in the remaining Dijon mustard, season with salt and pepper, and take the bowl off the heat right away so the yolks do not scramble.

Rest, slice, and serve:

Let the casserole rest for 10 minutes after baking so the custard settles and slices hold their shape, then serve warm with a generous pour of hollandaise over each portion.

Save

One Easter morning my nephew wandered into the kitchen just as I was drizzling hollandaise over the first slice, and he stood on a step stool watching with wide eyes like I was performing a magic trick. He took one bite, looked up at me completely serious, and said it was better than pancakes, which from a six year old is the highest praise imaginable.

Making It Your Own

This recipe bends easily to whatever you have on hand or need to accommodate. Toss in sautéed spinach and sun dried tomatoes between the layers for a brighter, more vegetal version, or swap the Canadian bacon for smoked tempeh if you are feeding vegetarians. Chives scattered over the top before serving add a fresh onion bite that cuts through the richness perfectly, and roasted potatoes on the side turn it into a full feast.

Getting the Hollandaise Right

Hollandaise has a reputation for being fussy, but the double boiler method makes it genuinely forgiving as long as you keep the water at a gentle simmer and never stop whisking. The most common mistake is rushing the butter, pouring it in too fast, which breaks the emulsion into an oily mess. If that happens, start a new yolk in a clean bowl and slowly whisk the broken sauce into it, which almost always rescues things without starting completely from scratch.

Brunch Day Strategy

The real beauty of this dish is how much you can do ahead of time so you are not chained to the stove while guests are mingling. Assemble the casserole the night before, make the hollandaise in the morning, and keep it warm by resting the bowl over a thermos of hot water. Serve with a simple side salad and some sparkling wine or mimosas, and you have a brunch that looks effortless but tastes like you planned it for a week.

• Set the table and prep drinks the night before so morning moves smoothly.
• Keep an eye on the hollandaise thickness, because it thickens further as it sits.
• Remember that the casserole is best served within 30 minutes of coming out of the oven.

Save

Some dishes become traditions without anyone deciding they should, and this casserole has a way of becoming one of those. Make it once and you will find yourself reaching for the English muffins every time a lazy weekend morning rolls around.

Recipe FAQs

→ Can I assemble this casserole the night before?

Yes, in fact it's recommended. Assemble the casserole, cover tightly with foil, and refrigerate overnight. This gives the English muffins time to fully absorb the egg custard, resulting in better texture and flavor. Just let it sit at room temperature for about 20 minutes before baking.

→ How do I prevent the hollandaise sauce from breaking?

Keep the heat gentle — the water in your double boiler should be barely simmering, not boiling. Add the melted butter very slowly in a thin stream while whisking constantly. If the sauce starts to look grainy or separate, remove it from the heat immediately and whisk in a teaspoon of cold water to bring it back together.

→ Can I make a vegetarian version?

Absolutely. You can omit the Canadian bacon entirely or substitute it with smoked tempeh, sautéed mushrooms, or roasted red peppers for added depth. The casserole is equally satisfying without the meat, especially when topped with fresh herbs like chives or tarragon.

→ What should I serve alongside this dish?

A simple side salad with a light vinaigrette cuts through the richness nicely. Roasted breakfast potatoes or a fresh fruit platter also pair well. For drinks, sparkling wine or mimosas complement the brunch feel perfectly.

→ How long does leftover casserole last in the fridge?

Stored in an airtight container, leftovers will keep for up to 3 days in the refrigerator. Reheat individual portions in the microwave or warm the whole dish in a 300°F oven until heated through. The hollandaise is best made fresh but can be gently reheated over a double boiler.

→ Can I use regular bacon instead of Canadian bacon?

You can, but the texture and flavor will be different. Regular bacon is fattier and saltier, so cook and drain it well before adding to the casserole. Canadian bacon keeps the dish leaner and closer to the traditional eggs Benedict flavor profile.