Neely's Sausage and Leek Breakfast Casserole

Wake up to pure comfort with Neely's Sausage and Leek Breakfast Casserole—a hearty, flavor-packed dish perfect for feeding a hungry crowd! This breakfast casserole combines savory ground sausage, tender sautéed leeks, and creamy cheddar cheese with custardy cubes of day-old bread for the ultimate make-ahead morning meal. The eggs and milk mixture, infused with a hint of Dijon mustard, adds a velvety richness, while the golden, cheesy topping delivers an irresistible crunch. Ready in just over an hour, this easy casserole is ideal for holiday brunches, weekend gatherings, or meal prep. Simply slice, serve, and enjoy a warm, satisfying start to your day!

Nutriscore Rating: 59/100

Prep Time:20 mins

Cook Time:45 mins

Total Time:65 mins

Servings: 6

Ingredients

• 1 pound Ground breakfast sausage
• 2 stalks Leeks
• 1 tablespoon Olive oil
• 8 large Eggs
• 1.5 cups Whole milk
• 1.5 cups Cheddar cheese, shredded
• 3 cups Day-old bread, cubed
• 1 teaspoon Salt
• 0.5 teaspoon Black pepper
• 1 tablespoon Dijon mustard
• 1 tablespoon Butter, for greasing the baking dish

Directions

Step 1

Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish with butter and set aside.

Step 2

Clean the leeks thoroughly by slicing them lengthwise, then chopping them into thin half-moons. Rinse them under cold water to remove any dirt.

Step 3

Heat olive oil in a large skillet over medium heat. Add the ground sausage and cook, breaking it apart with a spoon, until browned and fully cooked, about 7-8 minutes. Remove the sausage from the skillet and set aside.

Step 4

In the same skillet, add the chopped leeks. Sauté them until soft and fragrant, about 5 minutes. Remove from heat and set aside.

Step 5

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

Step 6

Add the cubed bread to the bowl and toss gently to coat. Let the mixture sit for a few minutes to allow the bread to absorb the liquid.

Step 7

Stir in the cooked sausage, sautéed leeks, and 1 cup of shredded cheddar cheese into the bread mixture. Mix until evenly incorporated.

Step 8

Pour the mixture into the greased baking dish, spreading it out evenly. Sprinkle the remaining 1/2 cup of cheddar cheese on top.

Step 9

Cover the dish with aluminum foil and bake in the preheated oven for 25 minutes. Remove the foil and continue baking for another 20 minutes, or until the top is golden and the casserole is set in the center.

Step 10

Remove the casserole from the oven and let it rest for 5-10 minutes before serving. Slice into portions and enjoy!

Nutrition Facts

Serving size	(2335.7g)

Amount per serving	% Daily Value*
Calories	5339.7

Total Fat 300.1g	0%
Saturated Fat 117.4g	0%
Polyunsaturated Fat 1.7g
Cholesterol 2061.2mg	0%
Sodium 12188.7mg	0%
Total Carbohydrate 419.7g	0%
Dietary Fiber 27.5g	0%
Total Sugars 50.1g
Protein 234.7g	0%

Vitamin D 534.0IU	0%
Calcium 2631.5mg	0%
Iron 40.8mg	0%
Potassium 3812.3mg	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: 50.8%

Protein: 17.7%

Carbs: 31.6%