Overnight Egg Casserole

Wake up to the perfect breakfast or brunch with this flavorful Overnight Egg Casserole! Packed with a medley of vibrant ingredients like diced bell peppers, onions, spinach, and melty cheddar cheese, this make-ahead dish combines the comforting heartiness of cubed day-old bread with the savory richness of eggs and optional breakfast sausage. With just 20 minutes of prep time, the casserole rests in your fridge overnight, allowing the flavors to meld into a satisfying, ready-to-bake morning feast. Perfect for holidays, meal prep, or feeding a crowd, this versatile recipe is easy to customize and guarantees a golden, fluffy, and irresistibly delicious start to your day.

Nutriscore Rating: 66/100

Prep Time:20 mins

Cook Time:45 mins

Total Time:65 mins

Servings: 8

Ingredients

• 8 large eggs
• 2 cups milk
• 1 teaspoon salt
• 0.5 teaspoon black pepper
• 0.5 teaspoon Italian seasoning
• 6 cups day-old bread, cubed
• 2 cups shredded cheddar cheese
• 1 cup cooked breakfast sausage, crumbled (optional)
• 1 cup diced bell peppers
• 0.5 cup diced onion
• 1 cup chopped spinach (optional)

Directions

Step 1

Grease a 9x13-inch casserole dish with cooking spray or butter.

Step 2

In a large mixing bowl, whisk together the eggs, milk, salt, black pepper, and Italian seasoning until well combined.

Step 3

Add the cubed bread to the egg mixture, stirring to ensure all the bread is evenly coated.

Step 4

Fold in the shredded cheddar cheese, cooked breakfast sausage (if using), bell peppers, onion, and spinach.

Step 5

Pour the mixture into the prepared casserole dish, spreading it out evenly.

Step 6

Cover the dish tightly with aluminum foil or plastic wrap and refrigerate for at least 8 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 15-20 minutes while the oven preheats.

Step 9

Bake the casserole, uncovered, for 40-45 minutes, or until the top is golden brown and the center is set. A knife or toothpick inserted into the middle should come out clean.

Step 10

Remove from the oven and allow the casserole to cool for 5-10 minutes before slicing and serving. Enjoy!

Nutrition Facts

Serving size	3274.1 grams (3274.1g)

Amount per serving	% Daily Value*
Calories	6501

Total Fat 242.60g	311%
Saturated Fat 102.20g	511%
Polyunsaturated Fat 0.30g
Cholesterol 1944mg	648%
Sodium 13755mg	598%
Total Carbohydrate 784.70g	285%
Dietary Fiber 58.40g	209%
Total Sugars 83.80g
Protein 310.60g	621%

Vitamin D 543IU	2714%
Calcium 3744mg	288%
Iron 66mg	366%
Potassium 5493mg	117%

*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: 33.3%

Protein: 18.9%

Carbs: 47.8%