Sausage & Cheddar Egg Casserole

When I need to feed a group in the morning without standing at the stove, this is what I make. A savoury egg casserole layered with sausage, sharp cheddar, and bread soaks overnight and bakes into a golden, fluffy, satisfying breakfast. It is the definition of easy hosting.

Assemble it the night before so the bread soaks up the custard, then just bake in the morning. It reheats well too, so leftovers are a bonus.

For more make-ahead mornings, try my overnight cinnamon rolls, or the veggie spinach feta egg bites.

Why this recipe works

Letting the assembled casserole soak overnight lets the bread absorb the egg custard fully, so it bakes into a fluffy, cohesive bake rather than a soggy one. Sausage adds savoury depth and cheddar melts into every bite. Baking low and steady sets the eggs gently for a tender result.

What you'll need

Simple, hearty ingredients you can prep ahead:

• Sausage: breakfast sausage, browned and drained. Any favourite works.
• Bread: a sturdy loaf, cut or torn. Slightly stale bread soaks up custard best.
• Cheese: sharp cheddar for flavour; add more on top for a golden crust.

Smart swaps: use any sausage, or swap in cooked bacon or ham. Vegetarian? Use sauteed mushrooms and peppers instead. Add spinach or diced tomato for veg. Gluten-free bread works fine.

Step by step

Step 1 — Brown the sausage

Cook the sausage until browned and drain off the fat so the casserole is not greasy. This is the only stovetop step.

Step 2 — Layer and soak

Layer bread, sausage and cheese in the dish, pour over the seasoned custard, and refrigerate overnight so the bread drinks it all in.

Step 3 — Bake in the morning

Let it warm up, then bake until puffed and golden with a set centre. A short rest makes it easier to slice.

Pro tips

• Let it soak overnight. This is what makes it fluffy rather than soggy.
• Drain the sausage. Removing fat keeps the bake from turning greasy.
• Use sturdy bread. Slightly stale, robust bread holds up to the custard.
• Rest before serving. Five minutes helps it set for clean squares.
• Check the centre. It should be set, not wobbly, before you pull it.

Storage & make-ahead

Leftovers keep in the fridge for up to 4 days and reheat well in the oven or microwave. Baked casserole freezes for up to 2 months — cool, portion, and bag. You can also fully assemble it and refrigerate up to 24 hours before baking, which is the whole make-ahead advantage.

Variations & substitutions

• Veggie: swap sausage for sauteed mushrooms and peppers.
• Bacon and gruyere: use bacon and a nuttier cheese.
• Spicy: add a pinch of chilli or use hot sausage.
• Smaller dish: use the ½x scaler and a square dish.

Frequently asked questions

Can I assemble it the night before?

Yes — that is the point. Assemble, refrigerate overnight, then rest and bake in the morning.

Why is my casserole soggy?

Not enough soaking or too much liquid. Let it soak overnight and use sturdy, slightly stale bread.

Can I make it vegetarian?

Absolutely — swap the sausage for sauteed vegetables like mushrooms, peppers and spinach.

How do I know it is done?

The centre should be puffed and set, not wobbly, and a knife should come out clean.

Final thoughts: this is my secret weapon for stress-free hosting — everyone gets a hot, hearty breakfast and I barely lift a finger in the morning. Make it for your next gathering and tell me your favourite add-ins over on the contact page.

For tips on savoury bread bakes and stratas, Serious Eats is a helpful guide.