Looking for a satisfying and crowd-pleasing breakfast? This Breakfast Sausage Casserole is just what you need! Packed with flavorful sausage, cheese, eggs, and vegetables, this dish is perfect for a family brunch or a holiday breakfast. Read on to discover the ingredients, step-by-step instructions, and tips to create a delicious breakfast casserole that will leave everyone asking for more.

What is a Breakfast Sausage Casserole?
A Breakfast Sausage Casserole is a savory dish made with layers of breakfast sausage, eggs, cheese, and often bread or hash browns. It’s a versatile recipe that can be customized with various vegetables and seasonings. This casserole is ideal for preparing ahead of time and baking in the morning, making it perfect for busy days or special occasions.
Ingredients List for Breakfast Sausage Casserole
To make this hearty casserole, gather the following ingredients:
Basic Ingredients:
- 1 pound breakfast sausage
- 6 large eggs
- 2 cups milk (whole or 2%)
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 teaspoon dry mustard powder
- 6 slices of bread, cubed (preferably day-old)
- 1 cup shredded cheddar cheese
- 1 cup shredded mozzarella cheese
- 1 medium bell pepper, chopped
- 1 medium onion, chopped
- 1 cup fresh spinach, chopped (optional)
- 2 tablespoons butter
Substitutions and Variations
This casserole is highly adaptable. Here are some substitutions and variations to suit different tastes and dietary needs:
Protein Alternatives:
- Use turkey sausage or chicken sausage for a leaner option.
- Substitute sausage with cooked bacon or ham.
Dairy-Free Option:
- Use almond milk or another dairy-free milk substitute.
- Replace cheese with a dairy-free cheese alternative.
Low-Carb Variation:
- Replace bread with cooked and chopped cauliflower florets.
- Skip the bread entirely and increase the amount of vegetables.
Step-by-Step Cooking Instructions

Follow these steps to create a delicious and satisfying breakfast sausage casserole:
Step 1: Preheat and Prepare
- Preheat your oven to 350°F (175°C).
- Grease a 9x13-inch baking dish with butter or non-stick cooking spray.
Step 2: Cook the Sausage
- In a large skillet, cook the breakfast sausage over medium heat until browned and cooked through. Break it into small pieces with a spatula. Drain any excess fat and set aside.
Step 3: Sauté the Vegetables
- In the same skillet, melt the butter and sauté the chopped onion and bell pepper until soft and fragrant. Add the spinach (if using) and cook until wilted. Remove from heat and set aside.
Step 4: Prepare the Egg Mixture
- In a large bowl, whisk together the eggs, milk, salt, black pepper, and dry mustard powder until well combined.
Step 5: Assemble the Casserole
- Spread the cubed bread evenly in the prepared baking dish.
- Layer the cooked sausage over the bread.
- Add the sautéed vegetables over the sausage.
- Sprinkle the shredded cheddar and mozzarella cheeses evenly over the vegetables and sausage.
- Pour the egg mixture evenly over the top, ensuring all the ingredients are well coated.
Step 6: Bake the Casserole
- Bake in the preheated oven for 40-45 minutes, or until the casserole is set and the top is golden brown.
- Let the casserole cool for a few minutes before slicing and serving.
How to Cook Breakfast Sausage Casserole: A Step-by-Step Guide
This guide ensures you achieve a perfect breakfast sausage casserole every time:
Preparing the Dish:
- Use day-old bread to avoid a mushy texture. Fresh bread can be dried out in the oven if necessary.
- Ensure all the ingredients are evenly distributed in the baking dish for consistent flavor in every bite.
Cooking the Sausage:
- Break the sausage into small pieces while cooking for even distribution throughout the casserole.
- Drain any excess fat to avoid a greasy casserole.
Baking Tips:
- Bake on the middle rack of your oven to ensure even cooking.
- Check the casserole at the 40-minute mark. If the center is set and the top is golden brown, it's ready.
Common Mistakes to Avoid
Even simple recipes can have pitfalls. Here are some common mistakes to avoid:
Overmixing the Eggs:
- Whisk the eggs just until combined. Overmixing can cause the casserole to be tough.
Using Too Much Liquid:
- Stick to the recommended amount of milk to avoid a runny casserole.
Overloading with Ingredients:
- Avoid overloading with too many vegetables or meats as this can cause uneven cooking.
Serving and Presentation Tips
Make your breakfast sausage casserole look as good as it tastes with these tips:
Clean Slices:
- Use a sharp knife to cut the casserole into neat squares. Wipe the knife clean between cuts for perfect slices.
Garnish:
- Sprinkle freshly chopped parsley or chives on top for a burst of color and flavor.
How to Serve Breakfast Sausage Casserole
This casserole is best served hot and fresh out of the oven. Here’s how to serve it for maximum enjoyment:
Family Style:
- Place the casserole in the center of the table and let everyone help themselves.
Individually Plated:
- Serve slices on individual plates with a side of fresh fruit or a simple green salad.
Presentation Ideas for Breakfast Sausage Casserole
Enhance the visual appeal of your casserole with these presentation ideas:
Colorful Toppings:
- Add colorful toppings like diced tomatoes or red bell peppers before baking for a vibrant appearance.
Decorative Plate:
- Serve the casserole on a decorative plate or platter for a more elegant presentation.
Breakfast Sausage Casserole Recipe Tips
To ensure your casserole turns out perfectly every time, consider these additional tips:
Prep Ahead:
- Assemble the casserole the night before, cover, and refrigerate. In the morning, simply bake it.
Storage:
- Store leftovers in an airtight container in the refrigerator for up to three days. Reheat in the oven or microwave.
Freezing:
- This casserole freezes well. After baking, cool completely, cut into portions, and freeze in airtight containers. Reheat in the oven from frozen.
Frequently Asked Questions (FAQs)
Q: Can I make this casserole ahead of time?
A: Yes, you can assemble the casserole the night before and refrigerate it. In the morning, bake it as directed.
Q: Can I freeze the casserole?
A: Yes, the casserole can be frozen after baking. Cool it completely, cut into portions, and freeze. Reheat in the oven from frozen.
Q: What can I use instead of bread in this casserole?
A: You can use cooked hash browns or cubed potatoes instead of bread for a different texture and flavor.
Q: How do I know when the casserole is done?
A: The casserole is done when the center is set, and the top is golden brown. A knife inserted into the center should come out clean.
Q: Can I use pre-cooked sausage?
A: Yes, you can use pre-cooked sausage. Simply crumble it and layer it in the casserole as directed.
Conclusion
Breakfast Sausage Casserole is a versatile, delicious, and easy-to-make dish that’s perfect for any occasion. With simple ingredients and straightforward instructions, you can whip up this casserole in no time. Whether for a family breakfast, a holiday brunch, or a meal prep solution, this casserole is sure to impress. Follow this guide to create a hearty and flavorful breakfast sausage casserole that everyone will love. Happy cooking!
PrintBreakfast Sausage Casserole Recipe
Prepare a delicious breakfast sausage casserole with eggs, cheese, and fresh veggies. Keywords: Breakfast sausage casserole, eggs, cheese, veggies.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Total Time: 1 hour
- Yield: 8 servings 1x
- Category: Breakfast
- Method: Baking
- Cuisine: American
- Diet: Gluten Free
Ingredients
- 1 pound breakfast sausage
- 6 large eggs
- 2 cups milk (whole or 2%)
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 teaspoon dry mustard powder
- 6 slices of bread, cubed (preferably day-old)
- 1 cup shredded cheddar cheese
- 1 cup shredded mozzarella cheese
- 1 medium bell pepper, chopped
- 1 medium onion, chopped
- 1 cup fresh spinach, chopped (optional)
- 2 tablespoons butter
Instructions
- Preheat oven to 350°F (175°C). Grease a 9x13 inch baking dish with butter.
- In a skillet over medium heat, cook the breakfast sausage until browned. Drain excess fat and set aside.
- In a large bowl, whisk together the eggs, milk, salt, black pepper, and dry mustard powder.
- Add the cubed bread to the egg mixture, stirring to coat.
- Stir in the cooked sausage, chopped bell pepper, onion, and spinach (if using).
- Add the shredded cheddar and mozzarella cheeses, mixing well.
- Pour the mixture into the prepared baking dish and spread it out evenly.
- Bake for 40-45 minutes or until the casserole is set and the top is golden brown.
- Let the casserole cool for a few minutes before serving.
Notes
- Prepare the casserole the night before and refrigerate. Bake in the morning for an easy breakfast.
- Customize with your favorite vegetables or cheese blends.
Nutrition
- Serving Size: 1 serving
- Calories: 350
- Sugar: 4g
- Sodium: 800mg
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