HOCO Brunch Casserole: Easy Overnight Breakfast Bake

HOCO Brunch Casserole is a layered egg, sausage and hash brown bake you assemble the night before and slide into the oven while everyone's getting dressed for homecoming. It solves the biggest brunch problem: feeding a house full of hungry teenagers without standing over a stove at 8am.

All you need is bread or hash browns, eggs, breakfast sausage and cheddar, about 12 hours of fridge time plus 50 minutes in the oven, and a 9×13 dish. Save it for later!

Why You'll Love This Recipe

• Make-ahead magic: Assemble it the night before so morning is just unwrapping and baking.
• Feeds a crowd: One 9×13 dish easily covers eight hungry teenagers or parents.
• Budget friendly: Built on eggs, bread and potatoes, all pantry staples.
• One dish cleanup: Everything bakes in a single casserole dish.
• Flexible add-ins: Easy to swap vegetables, cheese or meat based on what's in your fridge.

HOCO Brunch Casserole Ingredients

• Bread or frozen hash browns: The base that soaks up the egg mixture and turns tender on the bottom, crisp on top. Day-old French bread or torn white bread both work.
• Eggs: The backbone of the casserole, holding every layer together once baked.
• Milk: Loosens the eggs so the custard sets soft instead of rubbery.
• Beef breakfast sausage: Browned and crumbled, it adds savory depth throughout. Swap in turkey sausage if that's what you have.
• Cheddar cheese: Melts into pockets of gooey richness between layers. Monterey Jack or a pepper jack blend works too.
• Bell peppers and onion: Bring color and a little crunch against the soft eggs.
• Dijon mustard: A small amount wakes up the egg mixture without tasting mustardy.
• Soy sauce with a splash of rice vinegar: Stands in for Worcestershire sauce (which often contains anchovies), adding savory depth.

Head to the recipe card below for exact amounts.

Ways to Change It Up

• Protein swap: Use beef salami, diced turkey bacon, or skip meat entirely for a vegetarian version.
• Vegetable season: Try spinach and mushrooms in fall, zucchini and corn in summer.
• Spice it up: Add diced jalapeños or a shake of hot sauce to the egg mixture.
• Lighter version: Use egg whites for half the eggs and reduced-fat cheese.
• Slow cooker route: Layer everything in a greased crockpot and cook on low for 6-7 hours instead of baking.

How to Make HOCO Brunch Casserole

1. Brown the sausage: Cook the beef sausage with onion and pepper in a skillet until no pink remains, about 7 minutes, then drain.
2. Layer the base: Spread bread cubes or hash browns in a greased 9×13 dish, then scatter the sausage mixture and cheese on top.
3. Whisk the custard: Beat eggs, milk, mustard and the soy sauce mixture together until smooth and pale yellow.
4. Soak overnight: Pour the egg mixture evenly over the layers, press down gently so the bread absorbs liquid, then cover and refrigerate at least 8 hours.
5. Bake until set: Uncover and bake at 350°F for 45-55 minutes, until the center no longer jiggles and the top turns golden brown.
6. Rest and serve: Let the casserole sit 10 minutes before slicing so it holds together neatly.

Our Kitchen Notes

• Don't skip the rest: Pulling it straight from the oven makes slices fall apart; 10 minutes firms everything up.
• Check the center: A knife inserted in the middle should come out clean, with no wet egg clinging to it.
• Press the bread down: Make sure every piece touches the egg mixture before refrigerating, or you'll get dry spots.
• Use a deep dish: A shallow pan can overflow once the eggs puff in the oven.
• Shred your own cheese: Pre-shredded cheese has anti-caking coating that keeps it from melting as smoothly.

What to Serve With It

This casserole pairs well with something sweet on the side. Fresh fruit salad and orange juice keep breakfast light, while Brunch Quesadillas add a second savory option for a bigger spread. For dessert lovers in the group, a plate of Softbatch Cream Cheese Chocolate Chip Cookies rounds things out nicely.

Storage and Reheating

Store leftovers covered in the fridge for up to 4 days. For longer storage, wrap individual slices tightly and freeze up to 2 months, thawing overnight in the fridge before reheating. Warm slices in the microwave for 60-90 seconds, or in a 325°F oven for about 15 minutes until heated through.

HOCO Brunch Casserole FAQ

Can I bake it right away instead of overnight?

Yes, though the overnight rest gives the bread time to fully absorb the eggs. If baking immediately, let it sit at room temperature for 20 minutes first so it bakes evenly.

Can I double this recipe for a bigger group?

You can, using two 9×13 dishes or one large roasting pan, though you may need to add 10-15 extra minutes of bake time.

What bread works best?

Slightly stale French bread, sourdough or white sandwich bread all hold up well. Fresh, soft bread can turn mushy once soaked overnight.

HOCO Brunch Casserole

A make-ahead overnight breakfast casserole layered with bread, beef sausage, cheddar and a savory egg custard, baked golden for a homecoming morning brunch.

Print Recipe Pin Recipe

Prep Time 20 minutes mins

Cook Time 50 minutes mins

Total Time 1 hour hr 10 minutes mins

Servings: 8 servings

Course: Breakfast

Cuisine: American

Calories: 390

Ingredients Method

Ingredients

  

• 6 cups day-old French bread or white bread cubed
• 1 pound beef breakfast sausage
• 1 small onion diced
• 1 bell pepper diced
• 2 cups shredded cheddar cheese divided
• 8 large eggs
• 2 cups milk
• 1 teaspoon Dijon mustard
• 1 tablespoon soy sauce mixed with 1 teaspoon rice vinegar
• 1/2 teaspoon salt
• 1/4 teaspoon black pepper

Method

 

1. Grease the baking dish: Lightly grease a 9x13-inch baking dish with butter or cooking spray. Set it aside while you prepare the sausage mixture.
2. Brown the sausage: In a large skillet over medium heat, cook the beef sausage with the onion and bell pepper, breaking the sausage apart with a spatula, until no pink remains, about 7 minutes. Drain any excess fat.
3. Layer the bread: Spread the cubed bread evenly across the bottom of the prepared dish. Scatter the cooked sausage mixture over the bread.
4. Add the cheese: Sprinkle 1 1/2 cups of the shredded cheddar over the sausage and bread layer, reserving the rest for the top.
5. Whisk the egg custard: In a large bowl, whisk together the eggs, milk, Dijon mustard, soy sauce mixture, salt and pepper until smooth and pale yellow.
6. Pour over the layers: Pour the egg mixture evenly over the bread, sausage and cheese. Press down gently with a spatula so every piece of bread soaks up some liquid.
7. Refrigerate overnight: Cover the dish tightly with plastic wrap or foil and refrigerate for at least 8 hours or overnight, so the bread fully absorbs the custard.
8. Preheat the oven: The next morning, remove the casserole from the fridge and preheat your oven to 350°F. Let the dish sit on the counter for 15 minutes while the oven heats.
9. Bake uncovered: Uncover the dish and bake for 45-55 minutes, until the center is set and no longer jiggles and the top turns golden brown.
10. Add remaining cheese: During the last 10 minutes of baking, sprinkle the reserved cheddar cheese over the top and return it to the oven until melted.
11. Rest before serving: Remove the casserole from the oven and let it rest for 10 minutes so the slices hold together when cut. Serve warm.

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