Best Breakfast Sausage Casserole Recipe

by

Best Breakfast Sausage Casserole Recipe – Easy Make-Ahead Brunch Favorite

There’s no better way to start your day than with a hot, hearty, and flavor-packed breakfast casserole. This Breakfast Sausage Casserole is everything you want in a morning meal: fluffy eggs, savory sausage, melted cheese, and hearty bread baked to golden perfection. It’s a one-dish wonder perfect for holiday brunches, overnight guests, busy weekdays, or meal prepping ahead.

This easy sausage breakfast casserole can be made ahead the night before and baked in the morning, so you can wake up to a warm, satisfying breakfast with zero stress. It’s fully customizable, freezer-friendly, and guaranteed to be a crowd-pleaser.

🛒 Ingredients for a Perfect Breakfast Sausage Casserole

Main Casserole Ingredients:

  • 1 pound breakfast sausage (pork or turkey, mild or spicy)
  • 1 medium onion, finely chopped
  • 1 medium bell pepper, chopped (optional for color and crunch)
  • 8 slices of bread, cubed (white, wheat, or sourdough recommended)
  • 2 cups shredded cheddar cheese (or a blend with Monterey Jack or mozzarella)
  • 2 cups whole milk
  • 8 large eggs
  • 1 teaspoon dry mustard powder (adds depth of flavor)
  • ½ teaspoon garlic powder
  • ½ teaspoon salt
  • ¼ teaspoon black pepper

Optional Toppings:

  • ½ cup shredded cheese (for a gooey topping)
  • Fresh parsley or chives, chopped for garnish

🥣 How to Make Breakfast Sausage Casserole Step-by-Step

1. Cook the Sausage and Vegetables

  • In a large skillet over medium heat, brown the sausage, breaking it into crumbles.
  • Once browned (about 7–8 minutes), add chopped onion and bell pepper.
  • Sauté until softened, about 4–5 minutes.
  • Drain excess grease and set mixture aside to cool slightly.

2. Prepare the Casserole Base

  • Grease a 9×13-inch baking dish with butter or nonstick spray.
  • Layer cubed bread evenly on the bottom of the dish.
  • Spread the sausage mixture over the bread.
  • Sprinkle with 2 cups of shredded cheese.

3. Mix the Egg Custard

  • In a large mixing bowl, whisk together eggs, milk, dry mustard, garlic powder, salt, and pepper until fully combined.
  • Pour the egg mixture evenly over the casserole.
  • Use a spatula to gently press down the bread, helping it soak up the egg mixture.

4. Chill Overnight (Optional but Recommended)

  • Cover the dish tightly with plastic wrap or foil.
  • Refrigerate for at least 2 hours or overnight.
  • This allows the bread to absorb the custard and results in a richer, fluffier texture.

5. Bake to Golden Perfection

  • Preheat oven to 350°F (175°C).
  • If chilled overnight, remove the casserole from the fridge 20 minutes before baking.
  • Bake uncovered for 45–55 minutes, or until the top is golden and the center is set.
  • A knife inserted into the middle should come out clean.
  • For extra cheesiness, add the optional shredded cheese on top during the last 5 minutes.

6. Let it Rest and Serve

  • Allow the casserole to rest for 10 minutes before slicing.
  • Garnish with fresh parsley or chives for color and flavor.
  • Serve warm and enjoy!

🍴 Serving Suggestions

Pair this casserole with:

  • Fresh fruit salad for a refreshing contrast
  • Hash browns or home fries for an extra hearty breakfast
  • Flaky biscuits or toast
  • Hot sauce, salsa, or sour cream for bold flavor

Perfect for brunch buffets, potlucks, or a weekend family breakfast.

🌟 Pro Tips for the Best Sausage Breakfast Casserole

  • Use day-old bread: It absorbs the egg mixture better and prevents sogginess.
  • Sauté your veggies: Cooking the onions and peppers before baking enhances their flavor and reduces wateriness.
  • Let it rest: After baking, let the casserole cool slightly to make slicing easier.
  • Double the recipe: Feeding a crowd? Make two and freeze one for later.
  • Try homemade sausage: If you’re adventurous, make your own sausage blend with ground pork and spices.

📌 Breakfast Sausage Casserole Variations

Southwestern Style

  • Add diced green chiles, pepper jack cheese, and a spoonful of salsa to the egg mixture.

Italian Style

  • Use Italian sausage, mozzarella cheese, and sprinkle with oregano and basil.

Meat Lovers

  • Add chopped bacon, ham, or Canadian bacon along with sausage.

Veggie Lovers

  • Omit sausage and load up with spinach, mushrooms, broccoli, and zucchini.

Low-Carb Option

  • Replace half or all of the bread with roasted sweet potatoes or cauliflower florets.

📦 Storage and Freezing Instructions

Refrigerating Leftovers:

  • Store in an airtight container for up to 4 days.
  • Reheat in the microwave or oven at 325°F until warmed through.

Freezing Options:

  • Freeze after baking: Cool completely, portion into squares, and freeze for up to 2 months.
  • Freeze before baking: Assemble the casserole, cover tightly with foil and plastic wrap, and freeze. Thaw overnight in the fridge before baking as directed.

📊 Nutritional Information (Approx. per serving – 12 servings)

  • Calories: ~310
  • Protein: 17g
  • Fat: 20g
  • Carbohydrates: 15g
  • Sodium: 520mg

Nutrition may vary based on ingredients and brands used.

🥄 Why This Breakfast Sausage Casserole is a Must-Try

This is more than just a make-ahead breakfast casserole—it’s a reliable go-to for busy mornings, special occasions, or weekend brunches. It’s:

  • Customizable – Add whatever ingredients you love.
  • Convenient – Prep ahead and bake when ready.
  • Comforting – Classic flavors everyone enjoys.
  • Time-saving – Minimal effort, maximum reward.

Whether you’re hosting family for the holidays or simply looking for a no-fuss breakfast recipe, this dish delivers every single time.

Leave a Comment