Easy Egg & Sausage Casserole

Okay, so I used to be one of those people who stressed about what to make for breakfast when we had company. You know the drill – guests are coming, you want to serve something nice, but you also don’t want to be stuck in the kitchen scrambling eggs while everyone else is sitting around drinking coffee and having actual conversations.

Then my sister-in-law brought this casserole to a family brunch and I literally asked her for the recipe before I finished my first bite. She laughed and said, “It’s so easy, you’re going to be mad you didn’t know about it sooner.” She was right.

This thing is a complete game-changer. You make it the night before, stick it in the fridge, and then just pop it in the oven in the morning. While it’s baking, you can actually sit down and drink your coffee like a civilized human being.

My husband now requests this for his birthday breakfast every year. And my kids? They actually get excited about breakfast when they know this is happening. That’s saying something.

Sausage and Egg Casserole

Why This Casserole Will Change Your Breakfast Game Forever :

Look, I’ve tried a lot of breakfast casseroles. The soggy ones, the bland ones, the ones that look beautiful on Pinterest but taste like cardboard in real life. This isn’t one of those.

The bread soaks up all the egg mixture but doesn’t turn to mush. The sausage adds this perfect savory element, and the cheese… oh, the cheese. It gets all golden and bubbly on top and creates this amazing crust that contrasts with the creamy inside.

But here’s the real magic – it’s basically foolproof. I’ve made this hungover, I’ve made it at 6 AM when I could barely see straight, I’ve made it while simultaneously trying to wrangle three kids getting ready for school. It turns out perfect every single time.

My neighbor Carol (who’s notoriously picky about breakfast food) said it was “better than the fancy place downtown.” High praise from Carol.

What You Actually Need (Nothing Fancy, I Promise) :

Sausage and Egg Casserole

For the Casserole:

  • 1 pound breakfast sausage (Italian, sage, or spicy – whatever makes you happy)
  • 8-10 slices of bread, cubed (day-old bread works great, even better)
  • 2 cups shredded cheddar cheese (sharp is my preference)
  • 8 large eggs
  • 2 cups whole milk (don’t use skim, just don’t)
  • 1 teaspoon dry mustard powder (trust me on this one)
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1/4 teaspoon garlic powder
  • 2 tablespoons butter for greasing

Optional Add-ins (Because Why Not?):

  • 1 bell pepper, diced
  • 1 small onion, diced
  • 1 cup frozen hash browns, thawed
  • 1/4 cup chopped fresh chives
  • Hot sauce (for serving)

Shopping reality check: Get the good sausage. Not the cheapest stuff, but not the fancy artisanal $12/pound stuff either. Jimmy Dean or similar works perfectly. And please, for the love of all that’s holy, don’t use pre-shredded cheese. It doesn’t melt the same way.

The Process :

Sausage and Egg Casserole

Step 1: Deal with the Sausage First

Brown the sausage in a large skillet over medium heat, breaking it up with a spoon as it cooks. You want it nicely browned and crumbly, not just barely cooked.

If you’re adding bell pepper and onion (which I highly recommend), throw them in with the sausage for the last 5 minutes of cooking. They’ll get all soft and flavorful.

Drain off most of the grease, but not all of it. Leave maybe a tablespoon – it adds flavor. Let this cool while you prep everything else.

Step 2: Prep Your Bread (This is Important)

Cut your bread into cubes – about 1-inch pieces work well. If your bread is fresh, spread the cubes on a baking sheet and let them sit out for an hour or so to dry out a bit. Stale bread actually works better for this because it soaks up the egg mixture without falling apart.

Grease a 9×13 inch baking dish with butter. Really grease it – don’t be shy. Nobody wants casserole stuck to the pan.

Spread half the bread cubes in the bottom of the dish. Add the cooked sausage (and veggies if using), then half the cheese, then the remaining bread cubes.

Step 3: Make the Egg Mixture (The Heart of the Operation)

In a large bowl, whisk together eggs, milk, dry mustard, salt, pepper, and garlic powder. Whisk it really well – you want it completely combined and a little frothy.

The dry mustard is the secret ingredient here. It doesn’t make it taste like mustard, but it adds this subtle tang that makes everything taste more… more. You know?

Pour this mixture evenly over the bread in the casserole dish. Press the bread down gently with a fork so it’s all covered with the egg mixture.

Top with the remaining cheese. This is going to create that gorgeous golden top we’re after.

Step 4: The Waiting Game (But It’s Worth It)

Cover the dish with plastic wrap and refrigerate overnight. Or at least 4 hours. This is crucial – the bread needs time to absorb all that eggy goodness.

I usually make this after dinner the night before. Takes maybe 20 minutes of actual work, then it just sits in the fridge doing its thing while you binge-watch Netflix or whatever.

Step 5: Baking Day (The Easy Part)

Take the casserole out of the fridge about 30 minutes before you want to bake it. Let it come to room temperature while your oven preheats to 350°F.

Remove the plastic wrap and bake uncovered for 45-55 minutes, until the top is golden brown and the center is set. You’ll know it’s done when you can insert a knife in the center and it comes out mostly clean.

Let it rest for 10 minutes before cutting. I know it’s torture to wait, but if you cut it too soon, it’ll be all runny and sad.

Things I Wish Someone Had Told Me :

About the bread: Don’t use anything too fancy or too cheap. Regular sandwich bread, French bread, or even leftover hamburger buns work great. I’ve used everything from Wonder Bread to artisanal sourdough – it all works.

About the sausage: Cook it until it’s actually brown, not just gray. The extra browning adds so much flavor. Also, if you want to be fancy, you can use half sausage and half bacon. Just cook the bacon first, crumble it, and mix it with the sausage.

About make-ahead: This actually tastes better the second day. All the flavors have had time to meld together. You can even make it two days ahead if you want.

About leftovers: They reheat beautifully in the microwave. I usually cut individual portions and wrap them for easy weekday breakfasts.

Random discovery: A splash of hot sauce mixed into the egg mixture is amazing if you like things spicy. Learned this when I accidentally knocked the bottle over while whisking. Happy accident.

When Things Don’t Go According to Plan :

If the top browns too fast but the center isn’t set, cover it with foil and keep baking. Sometimes ovens run hot.

If it seems too wet after baking, you probably used too much milk or didn’t let the bread absorb enough. It’ll still taste good, just serve it with a spoon instead of trying to cut neat squares.

If it’s too dry, you might have overbaked it or used bread that was too stale. Add a little more milk next time.

If your family complains it’s “too fancy” for a regular breakfast… well, that’s what my kids said the first time. Now they request it. Sometimes you have to train people to appreciate good food.

Sausage and Egg Casserole

The Real Talk About This Recipe :

This serves about 8-10 people generously, or 6 people who really love breakfast. Perfect for holidays, weekend guests, or just when you want to feel like you have your life together.

The total active time is maybe 30 minutes – most of that is just browning sausage and whisking eggs. Then it does all the work while you sleep.

Is it healthy? Well… it’s got protein from the eggs and sausage, and there’s bread for carbs. The vegetables count as a serving, right? Look, sometimes you just need comfort food that makes people happy.

One last thing – this freezes really well. You can make two, bake one, and freeze the other unbaked for later. Just thaw it overnight and bake as directed.

Serves: 8-10 people Prep time: 30 minutes (plus overnight chilling) Cook time: 50 minutes

What’s your go-to make-ahead breakfast when you have company? I’m always looking for new ideas that don’t require me to be a short-order cook at 7 AM.

Happy brunching! (And may your guests never know how easy this actually was to make) 🍳