This Sausage & Egg Keto Breakfast Casserole is a delightful way to start your day. Perfect for meal prep, holiday gatherings, or simply enjoying a hearty breakfast at home, this dish combines savory sausage and creamy eggs with fresh spinach and cheese. With only 1g net carb per serving, it fits seamlessly into your keto lifestyle. The ease of preparation makes it an ideal choice for busy mornings or special occasions.

Jump to:
- Why You’ll Love This Recipe
- Tools and Preparation
- Essential Tools and Equipment
- Importance of Each Tool
- Ingredients
- Vegetables
- Main Ingredients
- Seasonings
- Cheese
- How to Make Sausage & Egg Keto Breakfast Casserole
- Step 1: Preheat the Oven
- Step 2: Cook the Sausage
- Step 3: Prepare the Egg Mixture
- Step 4: Assemble the Casserole
- Step 5: Bake and Serve
- How to Serve Sausage & Egg Keto Breakfast Casserole
- Individual Portions
- Holiday Gatherings
- Meal Prep Containers
- With a Side Salad
- How to Perfect Sausage & Egg Keto Breakfast Casserole
- Best Side Dishes for Sausage & Egg Keto Breakfast Casserole
- Common Mistakes to Avoid
- Storage & Reheating Instructions
- Refrigerator Storage
- Freezing Sausage & Egg Keto Breakfast Casserole
- Reheating Sausage & Egg Keto Breakfast Casserole
- Frequently Asked Questions
- Can I customize ingredients in the Sausage & Egg Keto Breakfast Casserole?
- How do I store leftovers from the Sausage & Egg Keto Breakfast Casserole?
- Is this casserole suitable for meal prep?
- Can I make it dairy-free?
- Final Thoughts
- 📖 Recipe Card
Why You’ll Love This Recipe
- Quick and Easy: This casserole comes together in just one hour, making it perfect for busy mornings.
- Meal Prep Friendly: Prepare it ahead of time for stress-free breakfasts throughout the week.
- Keto-Friendly: With only 1g net carbs per serving, this dish aligns perfectly with your low-carb diet.
- Flavorful Ingredients: The combination of sausage, eggs, and cheese packs a punch of flavor in every bite.
- Versatile Serving Options: Enjoy it warm or cold, as a main dish or a side at your next brunch.
Tools and Preparation
Before you start cooking your Sausage & Egg Keto Breakfast Casserole, gather the necessary tools to make the process smooth and efficient.
Essential Tools and Equipment
- Baking dish
- Large skillet
- Mixing bowl
- Whisk
- Spatula or wooden spoon
Importance of Each Tool
- Baking dish: Essential for holding all the ingredients together while baking to create a cohesive casserole.
- Large skillet: Allows you to cook the sausage evenly without overcrowding, ensuring rich flavor development.
- Mixing bowl: A must-have for combining the egg mixture; ensures thorough blending of ingredients.
Ingredients
Here are the ingredients needed for your Sausage & Egg Keto Breakfast Casserole:
Vegetables
- 3 cups spinach leaves (fresh, uncooked)
- 4 scallions (sliced, white and green parts separated)
- ¼ cup chopped fresh parsley
Main Ingredients
- 16 ounces breakfast sausage (see Notes)
- 12 large eggs
- ¾ cup heavy cream
Seasonings
- ½ teaspoon garlic powder
- ½ teaspoon kosher salt
- ¼ teaspoon freshly cracked black pepper
Cheese
- 2 cups freshly shredded cheddar cheese (see Notes)
How to Make Sausage & Egg Keto Breakfast Casserole
Step 1: Preheat the Oven
Preheat your oven to 375° Fahrenheit. Lightly grease your baking dish. Then, layer the spinach leaves, white parts of scallions, and chopped parsley at the bottom of the dish. Set aside.
Step 2: Cook the Sausage
In a large skillet over medium heat, cook the breakfast sausage until browned and crumbled. Stir often while cooking to break up the sausage into small pieces using a spatula or wooden spoon.
Step 3: Prepare the Egg Mixture
While the sausage cooks, whisk together the eggs, heavy cream, garlic powder, salt, and pepper in a large mixing bowl. Once fully combined, gently fold in the shredded cheddar cheese.
Step 4: Assemble the Casserole
Layer the cooked sausage on top of the spinach leaves in your baking dish. Pour the egg mixture over the sausage evenly across the casserole.
Step 5: Bake and Serve
Place your baking dish in the preheated oven and bake for 20 to 25 minutes or until firm and cooked through. Remove from oven and slice into 12 squares. Garnish with green parts of scallions and additional shredded cheese if desired before serving warm.
How to Serve Sausage & Egg Keto Breakfast Casserole
Serving this Sausage & Egg Keto Breakfast Casserole is simple and versatile. You can enjoy it as a hearty breakfast or brunch option, and it also works well for meal prep throughout the week.
Individual Portions
- Serve warm slices on individual plates for a classic breakfast experience.
- Garnish each slice with additional shredded cheese to enhance the flavor.
- Add a dollop of sour cream on top for a creamy finish.
Holiday Gatherings
- Slice the casserole into smaller squares for easy serving at holiday brunches.
- Pair with seasonal fruits like berries for a fresh contrast.
- Create a buffet-style display by offering various toppings such as salsa or avocado.
Meal Prep Containers
- Store individual portions in airtight containers for quick meals during the week.
- Reheat in the microwave for 1-2 minutes for an easy, satisfying breakfast.
- Label containers with dates to keep track of freshness.
With a Side Salad
- Serve alongside a simple green salad dressed with olive oil and vinegar for added freshness.
- Incorporate nuts or seeds into the salad for extra crunch.

How to Perfect Sausage & Egg Keto Breakfast Casserole
To achieve the best results with your Sausage & Egg Keto Breakfast Casserole, consider these helpful tips.
- Use fresh ingredients: Fresh spinach and quality sausage will elevate the flavors of your casserole.
- Don’t overcook: Bake just until the eggs are set but still moist for the perfect texture.
- Experiment with cheese: Try different cheeses like mozzarella or pepper jack for unique flavor profiles.
- Customize spices: Feel free to add herbs or spices that suit your taste, such as oregano or paprika.
- Let it rest: Allow the casserole to cool slightly before slicing to help it hold its shape better.
- Store properly: Keep leftovers in an airtight container in the fridge to maintain freshness.
Best Side Dishes for Sausage & Egg Keto Breakfast Casserole
Pairing sides with your Sausage & Egg Keto Breakfast Casserole can enhance your meal experience. Here are some fantastic options:
- Avocado Slices: Creamy avocado adds healthy fats and pairs well with eggs.
- Bacon Strips: Crispy bacon provides extra protein and a savory crunch alongside the casserole.
- Sautéed Mushrooms: Earthy mushrooms offer a delicious contrast to the cheesy casserole.
- Roasted Asparagus: Lightly seasoned asparagus adds a nutritious touch and vibrant color to your plate.
- Cauliflower Rice: A low-carb alternative that complements the casserole’s flavors perfectly.
- Greek Yogurt: A side of Greek yogurt can add creaminess and a hint of tanginess, enhancing overall flavor.
- Mixed Berries: Fresh berries bring sweetness and brightness, balancing out the savory dish.
These suggestions will make your meal even more delightful!
Common Mistakes to Avoid
When making the Sausage & Egg Keto Breakfast Casserole, it’s easy to make a few common errors. Here are some mistakes to keep in mind while preparing this delicious dish.
- Using wilted spinach: Always use fresh spinach leaves for the best flavor and texture. Wilted spinach can make your casserole soggy.
- Not cooking the sausage thoroughly: Make sure the breakfast sausage is fully browned and crumbled before adding it to the casserole. Undercooked sausage can lead to food safety issues.
- Overbeating the eggs: When mixing the eggs with cream, avoid overbeating. This can create a rubbery texture; just whisk until combined.
- Skipping the greasing step: Don’t forget to grease your baking dish! This helps prevent sticking and makes serving easier.
- Ignoring baking time: Keep an eye on your casserole as it bakes. If you leave it too long, it may dry out or burn.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- The casserole will last up to 4 days in the refrigerator.
Freezing Sausage & Egg Keto Breakfast Casserole
- Freeze portions in freezer-safe containers or wrap tightly in plastic wrap.
- It can be frozen for up to 3 months for best quality.
Reheating Sausage & Egg Keto Breakfast Casserole
- Oven: Preheat your oven to 350°F (175°C) and reheat covered for about 20 minutes, or until warmed through.
- Microwave: Heat individual servings on high for 1-2 minutes, checking frequently to avoid overheating.
- Stovetop: Place in a skillet over medium heat, adding a splash of water to steam and reheat evenly.
Frequently Asked Questions
Here are some frequently asked questions about the Sausage & Egg Keto Breakfast Casserole that might help you further.
Can I customize ingredients in the Sausage & Egg Keto Breakfast Casserole?
Yes! You can add different vegetables like bell peppers or zucchini, or substitute the sausage with bacon or ham for variety.
How do I store leftovers from the Sausage & Egg Keto Breakfast Casserole?
Store leftovers in an airtight container in the refrigerator for up to 4 days or freeze them for up to 3 months.
Is this casserole suitable for meal prep?
Absolutely! The Sausage & Egg Keto Breakfast Casserole is perfect for meal prep. You can make it ahead of time and reheat portions throughout the week.
Can I make it dairy-free?
Yes! You can use dairy-free cheese and substitute heavy cream with almond milk or coconut cream for a dairy-free version of this breakfast casserole.
Final Thoughts
The Sausage & Egg Keto Breakfast Casserole is not only delicious but also incredibly versatile. It’s perfect for meal prepping or serving during holiday gatherings. Feel free to customize it with your favorite vegetables or meats. Give this recipe a try, and enjoy a warm, comforting breakfast that fits perfectly into your keto lifestyle!
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Sausage & Egg Keto Breakfast Casserole
- Total Time: 40 minutes
- Yield: 12 servings 1x
Description
Savor the deliciousness of our Sausage & Egg Keto Breakfast Casserole, a perfect blend of savory sausage, creamy eggs, fresh spinach, and melted cheese. This low-carb dish is not only keto-friendly but also incredibly versatile, making it ideal for meal prep or special gatherings. With just 1g net carbs per serving, you can indulge without guilt. The casserole is easy to whip up in about an hour and can be enjoyed warm or cold, making it a fantastic choice for busy mornings or leisurely brunches.
Ingredients
- 3 cups fresh spinach leaves
- 16 ounces breakfast sausage
- 12 large eggs
- ¾ cup heavy cream
- 2 cups shredded cheddar cheese
Instructions
- Preheat your oven to 375°F (190°C) and grease a baking dish.
- Layer the spinach at the bottom of the dish.
- In a skillet over medium heat, cook the sausage until browned and crumbled.
- In a bowl, whisk together eggs, heavy cream, garlic powder, salt, and pepper; then fold in cheese.
- Layer cooked sausage over spinach and pour egg mixture on top.
- Bake for 20-25 minutes until firm; slice and serve warm.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Main
- Method: Baking
- Cuisine: Keto
Nutrition
- Serving Size: 1 slice (approx. 100g)
- Calories: 265
- Sugar: 1g
- Sodium: 610mg
- Fat: 20g
- Saturated Fat: 10g
- Unsaturated Fat: 9g
- Trans Fat: 0g
- Carbohydrates: 3g
- Fiber: 2g
- Protein: 18g
- Cholesterol: 300mg