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Easy Sausage & Egg Keto Breakfast Casserole with Spinach
This sausage and egg keto breakfast casserole is rich, satisfying, and easy to prepare with simple ingredients. Savory sausage, creamy eggs, melted cheddar, and spinach come together in one comforting bake that works beautifully for breakfast, brunch, or meal prep.
Quick Overview
- Prep time: Not specified
- Cook time: 30–35 minutes
- Total time: Not specified
- Servings: Not specified
Why Make This Recipe
- Simple preparation: Brown the sausage, whisk the eggs, combine the ingredients, and bake.
- Rich, savory flavor: Sausage and cheddar add bold flavor, while the eggs create a tender, satisfying base.
- Keto-friendly ingredients: Eggs, sausage, cheddar cheese, spinach, and olive oil fit easily into a low-carb breakfast.
- Great for sharing: This casserole is a convenient choice for family breakfasts, weekend brunches, or make-ahead meals.
Ingredients
- Eggs — measurement not specified
- Cheddar cheese — measurement not specified
- Sausage — measurement not specified
- Spinach — measurement not specified
- Salt — measurement not specified
- Pepper — measurement not specified
- Olive oil — measurement not specified
How to Make It
Preheat the oven to 350°F (175°C). Allow the oven to reach the correct temperature before baking so the casserole cooks evenly.
In a skillet, cook the sausage over medium heat until browned. Break the sausage apart as it cooks, if needed, and continue until it is thoroughly browned.
In a large bowl, whisk together the eggs, salt, and pepper. Whisk until the eggs are blended and the seasoning is evenly distributed.
Add the cooked sausage, spinach, and cheddar cheese to the egg mixture and stir to combine. Mix gently so the sausage, spinach, and cheese are spread throughout the eggs.
Grease a baking dish with olive oil and pour the mixture into the dish. Coat the dish well with olive oil, then carefully transfer the egg mixture into it.
Bake for 30–35 minutes, or until the eggs are set and the top is golden. The center should be firm rather than liquid, and the top should have a lightly golden finish.
Let cool slightly, then slice and serve. A short cooling period helps the casserole set and makes it easier to portion.
How to Serve It
- Serve warm with sliced avocado or a simple green salad for a fresh contrast.
- Add a spoonful of sour cream, hot sauce, or fresh herbs for extra flavor.
- Pair it with roasted vegetables or sautéed mushrooms for a hearty low-carb breakfast plate.
How to Store It
Let leftover casserole cool slightly before storing it in an airtight container in the refrigerator. Refrigerate leftovers promptly and enjoy them within a few days.
For longer storage, place cooled portions in a freezer-safe container or wrap them securely before freezing. Thaw frozen portions in the refrigerator before reheating.
Reheat individual portions gently in the microwave or warm them in the oven until heated through. Avoid overheating, as this can make the eggs firm or rubbery.
Helpful Tips
- Grease the baking dish thoroughly with olive oil to help the casserole release cleanly after baking.
- Cook the sausage until browned before adding it to the eggs for the best savory flavor and texture.
- Check the center before removing the casserole from the oven. It should be set, with no liquid egg remaining in the middle.
Optional Variations
- Replace cheddar cheese with another melting cheese, such as Monterey Jack or mozzarella.
- Add extra low-carb vegetables, such as mushrooms, bell peppers, or onions, if desired.
- Use spicy sausage or add red pepper flakes for a bolder, more flavorful casserole.
Frequently Asked Questions
Can I prepare this casserole ahead of time?
Yes. Assemble the casserole, cover it, and refrigerate it until you are ready to bake. Bake it according to the supplied directions, checking that the eggs are fully set before serving.
How do I know when the casserole is done?
The casserole is ready when the eggs are set in the center and the top is golden. If the center still looks liquid, continue baking until set.
Can I freeze leftover casserole?
Yes. Cool the casserole, divide it into portions, and store it in freezer-safe packaging. Thaw it in the refrigerator before reheating.
Is this recipe suitable for a keto breakfast?
The listed ingredients are commonly used in keto-friendly meals because they provide eggs, cheese, sausage, spinach, and olive oil without adding a grain-based ingredient. Check packaged sausage and cheese labels if you are following strict carbohydrate targets.
Sausage and Egg Keto Breakfast Casserole
This sausage and egg keto breakfast casserole is rich, satisfying, and easy to prepare, featuring savory sausage, creamy eggs, melted cheddar, and spinach in a single bake.
Ingredients
Main Ingredients
- 8 large Eggs Large eggs work best for this recipe.
- 2 cups Cheddar cheese, shredded Feel free to substitute with another melting cheese if desired.
- 1 pound Sausage, cooked and crumbled Use keto-friendly sausage without fillers.
- 2 cups Spinach, chopped Fresh or frozen spinach can be used.
- 1 teaspoon Salt Adjust according to preference.
- 1 teaspoon Pepper Freshly ground black pepper is recommended.
- 2 tablespoons Olive oil For greasing the baking dish.
Instructions
Preparation
- Preheat the oven to 350°F (175°C).
- In a skillet, cook the sausage over medium heat until browned, breaking it apart as it cooks.
- In a large bowl, whisk together the eggs, salt, and pepper until well blended.
- Add the cooked sausage, chopped spinach, and shredded cheddar cheese to the egg mixture and mix gently.
- Grease a baking dish thoroughly with olive oil and pour the egg mixture into the dish.
Cooking
- Bake in the oven for 30–35 minutes or until the eggs are set and the top is golden.
- Let cool slightly, then slice and serve.
Notes
For added flavor, consider serving with avocado, sour cream, or fresh herbs. Casserole can be assembled ahead of time and refrigerated until baking.
