Sausage egg casserole

Prep Time: 20 minutes
Cook Time: 45-55 minutes
Total Time: 1 hour 15 minutes (plus optional overnight refrigeration)
Intensity Level: Easy – Minimal prep, simple ingredients, and straightforward steps make this a perfect recipe for beginners or busy mornings.
Servings: 8-10
Category: Breakfast, Brunch, Holiday, Make-Ahead

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Why This Recipe Works

This Sausage Egg Casserole is the ultimate solution for stress-free mornings. It’s a hearty, crowd-pleasing dish that combines savory breakfast sausage, fluffy eggs, sharp cheddar cheese, and soft, custard-soaked bread. What makes it truly exceptional is its versatility. You can assemble it the night before, let the flavors meld, and simply bake it in the morning. It’s perfect for Christmas morning, Easter brunch, a weekend gathering, or even a satisfying weeknight breakfast-for-dinner.

This recipe delivers a perfect balance of textures: a slightly crisp top, a creamy, savory center, and no dry edges. Let’s get started.

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Ingredients

• 1 lb (450g) breakfast sausage – Choose mild, spicy, or maple-flavored based on your preference. Bulk sausage is ideal, but you can also remove casings from links.

• 8 large eggs

• 2 cups whole milk – For the richest, creamiest texture. For a lighter version, you can use 2% milk, but avoid skim.

• 1 teaspoon dry mustard – This adds a subtle depth and tang that elevates the eggs.

• ½ teaspoon salt

• ½ teaspoon black pepper

• 6 cups day-old bread, cubed (about ½ a loaf) – Challah, brioche, French bread, or a sturdy white bread work best. Day-old bread absorbs the egg mixture without becoming mushy.

• 2 cups sharp cheddar cheese, shredded – Sharp cheddar provides the most flavor. You can also use a blend of cheddar, Monterey Jack, or Gruyère.

• 2 green onions, thinly sliced (optional, for garnish)

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Instructions

Intensity Level: Easy

Step 1: Prepare the Bread

• Grease a 9×13-inch baking dish with butter or non-stick cooking spray.

• Scatter the cubed bread evenly across the bottom of the dish. Set aside.

Step 2: Cook the Sausage (Intensity: Low)

• In a large skillet over medium-high heat, cook the breakfast sausage, breaking it into small crumbles with a wooden spoon.

• Continue cooking for 8-10 minutes, until the sausage is fully browned and no longer pink. There’s no need to drain the sausage if you’re using a higher-fat variety, as the fat adds flavor to the casserole. If you prefer, you can drain off excess fat.

• Sprinkle the cooked sausage evenly over the bread cubes in the baking dish.

Step 3: Create the Custard (Intensity: Low)

• In a large mixing bowl, whisk together the eggs, whole milk, dry mustard, salt, and black pepper. Whisk vigorously for about 1 minute, until the mixture is completely homogenous and slightly frothy. This ensures the eggs bake up light and fluffy.

Step 4: Assemble the Casserole

• Pour the egg mixture evenly over the bread and sausage. Gently press down on the bread with a spatula to ensure all the cubes are soaked in the custard.

• Sprinkle the shredded sharp cheddar cheese evenly over the top.

Step 5: Refrigerate (Optional but Recommended)

• For best results: Cover the dish with plastic wrap or foil and refrigerate for at least 2 hours, or overnight (up to 24 hours). This allows the bread to fully absorb the egg mixture, resulting in a richer, more cohesive casserole.

• If baking immediately: Let the assembled casserole sit at room temperature for 15-20 minutes while the oven preheats.

Step 6: Bake (Intensity: Low)

• Preheat your oven to 350°F (175°C).

• If the casserole was refrigerated, remove it from the fridge while the oven preheats.

• Bake, uncovered, for 45-55 minutes. The casserole is done when the edges are golden brown and puffed up, and the center is set. To test, insert a knife into the center; it should come out clean.

• If the top is browning too quickly, loosely tent with foil for the last 10-15 minutes of baking.

Step 7: Rest and Serve

• Remove the casserole from the oven and let it rest on a wire rack for 10 minutes. This allows the casserole to set up, making it easier to slice and serve.

• Garnish with thinly sliced green onions, if desired. Slice into squares and serve warm.

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Nutrition Information

Nutritional information is an estimate and per serving (based on 10 servings).

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Expert Tips & Variations

• Make it Lighter: Use turkey or chicken sausage, low-fat milk, and reduce the cheese by half. You can also substitute one cup of the milk with unsweetened almond milk.

• Vegetarian Version: Replace the sausage with 2 cups of sautéed mushrooms, spinach, and bell peppers.

• Add More Vegetables: Diced bell peppers, onions, or sautéed mushrooms can be added when cooking the sausage for extra flavor and nutrition.

• Spice It Up: Use hot Italian sausage or add a pinch of cayenne pepper and a diced jalapeño to the egg mixture.

• Crusty Top Preference: For an extra crispy top, sprinkle an additional ¼ cup of cheese over the casserole during the last 10 minutes of baking.

• Storage: Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat individual portions in the microwave or in a 300°F oven until warmed through.

• Freezing: This casserole freezes beautifully. Bake as directed, allow to cool completely, then wrap tightly in foil and freeze for up to 3 months. To reheat, bake from frozen at 350°F for 30-40 minutes, or until heated through.

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Recipe Card Summary

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Enjoy this comforting, crowd-pleasing casserole that’s sure to become a staple in your breakfast and brunch rotation!