This Sausage & Egg Keto Breakfast Casserole is a delightful way to kickstart your day. Perfect for holiday gatherings or meal prep, this dish combines savory sausage and fresh spinach with eggs and creamy cheddar cheese. With just 1g net carb per serving, it caters to keto enthusiasts while being gluten-free and low in carbohydrates. Its rich flavors and comforting texture make it a standout choice for any breakfast table.

Jump to:
- Why You’ll Love This Recipe
- Tools and Preparation
- Essential Tools and Equipment
- Importance of Each Tool
- Ingredients
- Fresh Produce
- Protein & Dairy
- Seasoning
- 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 It Up!
- How to Serve Sausage & Egg Keto Breakfast Casserole
- With Fresh Avocado
- Top with Salsa
- Serve with Greek Yogurt
- Pair with Fresh Herbs
- Accompany with Hot Sauce
- 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 use different meats in this casserole?
- Is this Sausage & Egg Keto Breakfast Casserole suitable for meal prep?
- What can I add to the Sausage & Egg Keto Breakfast Casserole?
- How do I store leftovers of the Sausage & Egg Keto Breakfast Casserole?
- Final Thoughts
- 📖 Recipe Card
Why You’ll Love This Recipe
- Easy to Prepare: This casserole comes together quickly, making it ideal for busy mornings or last-minute brunch plans.
- Meal Prep Friendly: You can make this dish ahead of time and enjoy it throughout the week, saving you precious time during hectic mornings.
- Keto-Friendly Delight: With only 1g net carbs per serving, it’s perfect for anyone following a ketogenic diet.
- Versatile Ingredients: Feel free to customize the recipe by adding your favorite vegetables or spices.
- Hearty and Satisfying: Packed with protein and healthy fats, it keeps you full longer.
Tools and Preparation
Before you dive into making your casserole, gather your tools. Having everything ready will streamline the cooking process.
Essential Tools and Equipment
- Baking dish
- Large skillet
- Mixing bowl
- Whisk
- Spatula
Importance of Each Tool
- Baking dish: A good baking dish ensures even cooking and makes serving easy.
- Large skillet: Essential for browning sausage properly, which adds flavor to your dish.
- Mixing bowl: A spacious bowl allows for thorough mixing of ingredients without spilling.
Ingredients
Here are the ingredients you’ll need for the Sausage & Egg Keto Breakfast Casserole:
Fresh Produce
- 3 cups spinach leaves (fresh, uncooked)
- 4 scallions (sliced, white and green parts separated)
- ¼ cup chopped fresh parsley
Protein & Dairy
- 16 ounces breakfast sausage (see Notes)
- 12 large eggs
- ¾ cup heavy cream
Seasoning
- 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 a baking dish. Layer the spinach leaves, white parts of scallions, and chopped parsley in 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, breaking the sausage into small pieces with a spatula or wooden spoon.
Step 3: Prepare the Egg Mixture
While the sausage cooks, whisk together eggs, heavy cream, garlic powder, kosher salt, and black pepper in a large mixing bowl. Once fully combined, gently fold in 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 evenly over the sausage to ensure proper distribution.
Step 5: Bake It Up!
Place your baking dish in the preheated oven. Bake for 20 to 25 minutes or until the casserole is firm and eggs are cooked through. Remove from oven; 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 your Sausage & Egg Keto Breakfast Casserole can elevate your breakfast experience and impress your guests. Here are some delicious serving suggestions to consider.
With Fresh Avocado
- Adding sliced avocado provides a creamy texture and healthy fats that complement the casserole perfectly.
Top with Salsa
- A spoonful of fresh salsa adds a zesty kick and bright flavors that enhance the overall taste of the dish.
Serve with Greek Yogurt
- A dollop of Greek yogurt on the side offers a tangy contrast and extra protein, making it a satisfying meal.
Pair with Fresh Herbs
- Garnishing with fresh herbs like cilantro or basil can add a pop of color and freshness to each serving.
Accompany with Hot Sauce
- For those who enjoy heat, offering hot sauce allows guests to customize their plates with an extra layer of flavor.

How to Perfect Sausage & Egg Keto Breakfast Casserole
To make your Sausage & Egg Keto Breakfast Casserole even better, try these helpful tips.
-
Use Fresh Ingredients: Fresh spinach and herbs enhance flavor and nutrition, giving your casserole a vibrant taste.
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Whisk Eggs Well: Mixing eggs thoroughly ensures a fluffy texture throughout the casserole, making every bite delightful.
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Cook Sausage Properly: Browning the sausage not only adds flavor but also improves the overall texture of the dish.
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Customize Cheese Choices: Experimenting with different cheeses such as Monterey Jack or pepper jack can add unique flavors.
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Cool Before Storing: Allow the casserole to cool completely before storing leftovers in an airtight container for optimal freshness.
Best Side Dishes for Sausage & Egg Keto Breakfast Casserole
Pairing side dishes with your Sausage & Egg Keto Breakfast Casserole can make your meal more satisfying. Here are some great options to consider.
- Mixed Green Salad: A light salad with vinaigrette adds freshness and balances the richness of the casserole.
- Bacon Strips: Crispy bacon brings savory flavors that pair well with eggs, enhancing your breakfast spread.
- Zucchini Noodles: Light and low-carb, zucchini noodles serve as a fun alternative to pasta while keeping it keto-friendly.
- Chia Seed Pudding: This nutritious option is high in fiber and protein, perfect for a wholesome start to your day.
- Roasted Brussels Sprouts: These caramelized veggies provide crunch and depth of flavor, making them an excellent side.
- Keto Pancakes: Fluffy pancakes made from almond flour or coconut flour offer a satisfying treat without high carbs.
Common Mistakes to Avoid
When making the Sausage & Egg Keto Breakfast Casserole, you might encounter some common mistakes. Here are a few to steer clear of:
- Skipping the Preheat: Always preheat your oven. This ensures even baking and helps achieve a perfectly set casserole.
- Overcooking the Sausage: Cook sausage until just browned. Overcooking can make it dry. Aim for a nice crumble without excess grease.
- Neglecting Seasoning: Don’t forget to season your egg mixture. Proper seasoning enhances flavor, so include salt and pepper generously.
- Using Low-Quality Cheese: Opt for freshly shredded cheese instead of pre-packaged. Fresh cheese melts better and adds creaminess to your casserole.
- Not Letting It Cool: Allow the casserole to cool slightly before slicing. This helps it set properly and makes serving easier.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- It will keep well for up to 4 days in the refrigerator.
Freezing Sausage & Egg Keto Breakfast Casserole
- Freeze slices wrapped tightly in plastic wrap or foil.
- The casserole can be frozen for up to 3 months.
Reheating Sausage & Egg Keto Breakfast Casserole
- Oven: Preheat oven to 350°F and bake for about 15-20 minutes or until heated through.
- Microwave: Heat on medium power in a microwave-safe dish for about 2-3 minutes, checking frequently.
- Stovetop: Place slices in a skillet over low heat, cover, and warm for about 5-7 minutes.
Frequently Asked Questions
Here are some answers to questions you might have about the Sausage & Egg Keto Breakfast Casserole.
Can I use different meats in this casserole?
Yes! Feel free to substitute breakfast sausage with bacon, ham, or turkey sausage for variety.
Is this Sausage & Egg Keto Breakfast Casserole suitable for meal prep?
Absolutely! It’s perfect for meal prep as it stores well and can be reheated easily throughout the week.
What can I add to the Sausage & Egg Keto Breakfast Casserole?
You can add vegetables like bell peppers, mushrooms, or zucchini for extra nutrition and flavor.
How do I store leftovers of the Sausage & Egg Keto Breakfast Casserole?
Store leftovers in an airtight container in the refrigerator for up to 4 days or freeze portions for later use.
Final Thoughts
The Sausage & Egg Keto Breakfast Casserole is not only delicious but also versatile. You can customize it with different meats and veggies based on your preferences. This recipe is perfect for meal prep or holiday gatherings, making breakfast easy and enjoyable. Try it out today!
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Sausage & Egg Keto Breakfast Casserole
- Total Time: 40 minutes
- Yield: Serves 12 1x
Description
Savor the deliciousness of Sausage & Egg Keto Breakfast Casserole, an ideal start to your day or a perfect dish for holiday gatherings. This hearty breakfast bake combines savory breakfast sausage, fresh spinach, and creamy cheddar cheese for a satisfying meal that caters to keto enthusiasts. With only 1g net carbs per serving and packed with protein and healthy fats, this gluten-free casserole is not only nutritious but also incredibly easy to make. Prepare it ahead of time for busy mornings or enjoy it fresh from the oven. Whether served solo or enhanced with toppings like avocado or salsa, this casserole is sure to impress.
Ingredients
- 16 ounces breakfast sausage
- 12 large eggs
- ¾ cup heavy cream
- 3 cups fresh spinach leaves
- 2 cups shredded cheddar cheese
- ½ teaspoon garlic powder
- ½ teaspoon kosher salt
- ¼ teaspoon freshly cracked black pepper
Instructions
- Preheat oven to 375°F and grease a baking dish.
- Cook the sausage in a skillet over medium heat until browned; set aside.
- In a bowl, whisk eggs with heavy cream and seasonings. Fold in shredded cheese.
- Layer spinach in the baking dish, then add cooked sausage on top.
- Pour the egg mixture evenly over the layers.
- Bake for 20-25 minutes until firm and cooked through.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Main
- Method: Baking
- Cuisine: Keto
Nutrition
- Serving Size: 1 square (approximately 100g)
- Calories: 320
- Sugar: 1g
- Sodium: 700mg
- Fat: 24g
- Saturated Fat: 10g
- Unsaturated Fat: 14g
- Trans Fat: 0g
- Carbohydrates: 3g
- Fiber: 2g
- Protein: 23g
- Cholesterol: 290mg