Easy Cheesy Do Ahead Brunch Casserole

Make your mornings effortlessly delicious with this Easy Cheesy Do Ahead Brunch Casserole, the ultimate make-ahead breakfast recipe that brings everyone to the table. Packed with savory layers of day-old French or sourdough bread, melted cheddar cheese, and crumbled breakfast sausage, this hearty dish is bound together by a rich, custard-like mixture of eggs, milk, and a touch of Dijon mustard for a flavor-packed punch. Simply assemble it the night before, refrigerate, and bake to golden perfection the next morning—perfect for feeding a crowd with minimal effort! With just 15 minutes of prep time and a stress-free bake the next day, this brunch casserole makes an ideal choice for holidays, family gatherings, or lazy weekends. Garnish with chopped green onions for a burst of freshness before serving, and savor every cheesy, satisfying bite.

Nutriscore Rating: 54/100

Prep Time:15 mins

Cook Time:45 mins

Total Time:60 mins

Servings: 8

Ingredients

• 6 cups Cubed bread (preferably day-old French or sourdough)
• 2 cups Shredded cheddar cheese
• 1 pound Cooked breakfast sausage (crumbled)
• 8 pieces Large eggs
• 2 cups Milk
• 2 tablespoons Dijon mustard
• 1 teaspoon Salt
• 0.5 teaspoons Black pepper
• 0.25 cups Chopped green onions (optional garnish)

Directions

Step 1

Lightly grease a 9x13-inch baking dish.

Step 2

Spread the cubed bread evenly in the bottom of the dish.

Step 3

Sprinkle the shredded cheddar cheese on top of the bread cubes, followed by the cooked and crumbled breakfast sausage.

Step 4

In a large mixing bowl, whisk together the eggs, milk, Dijon mustard, salt, and black pepper until fully combined.

Step 5

Pour the egg mixture evenly over the bread, cheese, and sausage in the baking dish.

Step 6

Cover the dish with plastic wrap or foil and refrigerate for at least 6 hours, or overnight, to allow the flavors to meld.

Step 7

When ready to bake, preheat your oven to 350°F (175°C).

Step 8

Remove the casserole from the refrigerator and let it sit at room temperature for about 20 minutes while the oven heats.

Step 9

Bake the casserole, uncovered, in the preheated oven for 40 to 45 minutes, or until the top is golden brown and the center is set. A knife inserted into the center should come out clean.

Step 10

Allow the casserole to cool for 5 to 10 minutes before slicing and serving.

Step 11

Garnish with chopped green onions, if desired, and enjoy your hassle-free brunch!

Nutrition Facts

Serving size	(1642.2g)

Amount per serving	% Daily Value*
Calories	3366.1

Total Fat 272.3g	0%
Saturated Fat 114.2g	0%
Polyunsaturated Fat 0.3g
Cholesterol 2092.4mg	0%
Sodium 8441.8mg	0%
Total Carbohydrate 50.8g	0%
Dietary Fiber 1.0g	0%
Total Sugars 24.8g
Protein 177.3g	0%

Vitamin D 534.7IU	0%
Calcium 2550.4mg	0%
Iron 12.8mg	0%
Potassium 2201.0mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 72.9%

Protein: 21.1%

Carbs: 6.0%