Welcome to your new breakfast obsession: Keto Breakfast Casserole! This golden-baked dish isn’t just low in carbs, it’s loaded with robust flavors from crispy bacon, savory sausage, gooey cheeses, and plenty of colorful veggies. There’s something deeply comforting about digging into a warm slice that keeps you fueled and satisfied all morning. Whether you’re prepping for a busy weekday or hosting brunch, this recipe will have everyone asking for seconds (keto eaters or not!).
Ingredients You’ll Need
Get ready to fall in love with how simple and impactful the ingredients are in this Keto Breakfast Casserole. Each component plays a special role in delivering amazing taste, a satisfying texture, or a pop of vibrant color, ensuring every bite is as delightful as the last.
- 8 large eggs: These form the hearty, protein-packed foundation and set up the casserole’s signature fluffiness.
- 1/2 cup heavy cream: Adds richness and creaminess to bind everything together with a luscious, custard-like texture.
- 1 cup shredded cheddar cheese: Delivers sharp cheesy flavor and that irresistible melty stretch.
- 1/2 cup shredded mozzarella cheese: Offers a gooey, creamy counterbalance to cheddar’s sharpness.
- 8 slices bacon, cooked and crumbled: Smoky, crispy bacon provides savory crunch and a crowd-pleasing flavor punch.
- 1/2 pound breakfast sausage, cooked and crumbled: Infuses the casserole with bold, herby flavor and extra heartiness.
- 1/2 medium onion, diced: For zesty sweetness and aromatic depth in every bite.
- 1/2 red bell pepper, diced: Pops of color and subtle sweetness that make the dish as pretty as it is tasty.
- 2 cups fresh spinach, chopped: Provides nutrients and a pleasant earthiness while keeping things fresh.
- 1 teaspoon garlic powder: Boosts savory flavor for all those wonderful breakfast vibes.
- 1/2 teaspoon smoked paprika: Packs a subtle smokiness that plays beautifully with the meats and cheese.
- 1/2 teaspoon salt: Enhances all the flavors without overpowering the natural goodness.
- 1/4 teaspoon black pepper: Adds just a hint of warmth and balanced spice.
- 2 tablespoons chopped fresh parsley, for garnish: A bright and fresh finishing touch to wake up your tastebuds—and the presentation!
How to Make Keto Breakfast Casserole
Step 1: Prep Your Pan and Oven
Start by preheating your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with non-stick spray or a swipe of butter. This small step ensures your casserole will lift out easily and won’t stick, keeping your beautiful layers intact.
Step 2: Cook the Sausage
Place a large skillet over medium heat and crumble in your breakfast sausage. Sauté it until fully browned and cooked through, breaking it into bite-sized crumbles. Once done, scoop it out and set aside, leaving behind those delicious juices for even more flavor.
Step 3: Sauté the Veggies
In the same skillet, toss in the diced onion and red bell pepper. Cook for about 3 to 4 minutes until they begin to soften and turn fragrant. Stir in your chopped spinach and sauté just until the leaves wilt down—no need to overcook, as they’ll finish in the oven.
Step 4: Whisk the Egg Mixture
While your veggies cool slightly, grab a large bowl and whisk together the eggs, heavy cream, garlic powder, smoked paprika, salt, and black pepper. Whisk until it’s impeccably smooth—this will make your Keto Breakfast Casserole irresistibly fluffy and creamy.
Step 5: Combine All the Goodness
To the bowl with the egg mixture, gently fold in the cooked sausage, crumbled bacon, sautéed veggies, cheddar cheese, and mozzarella cheese. Stir until everything looks evenly distributed, giving a little preview of that beautiful, hearty filling.
Step 6: Assemble and Bake
Pour the entire mixture into your prepared baking dish, spreading it out evenly. Slide the casserole into your hot oven and bake for 30 to 35 minutes, or until the eggs are set and the top is a rich, golden brown. Your kitchen will smell amazing while it bakes!
Step 7: Cool, Garnish, and Serve
Allow the casserole to cool for just a few minutes—it helps everything set. Sprinkle over the fresh parsley for a pop of color and freshness before slicing into generous squares. Now, serve warm and watch it disappear.
How to Serve Keto Breakfast Casserole
Garnishes
A sprinkle of chopped fresh parsley is classic, but don’t stop there! For added pizzazz, try scattering a few sliced green onions, a pinch of red pepper flakes, or even a little extra shredded cheese over the hot top right before serving. These little details add both flavor and vibrant color.
Side Dishes
While Keto Breakfast Casserole is certainly filling on its own, it pairs wonderfully with a light mixed greens salad, roasted asparagus, or a tangy cucumber-tomato salad for a super fresh brunch plate. If you’d like to round things out, sliced avocado or a dollop of sour cream is always a crowd-pleaser.
Creative Ways to Present
Think outside the casserole dish! Cut the casserole into bite-sized squares and skewer them for a brunch buffet. Or, scoop it onto toasted keto bread for an open-faced breakfast sandwich. For fun meal-prep, portion into muffin tins and bake individually—perfect for grab-and-go breakfasts all week.
Make Ahead and Storage
Storing Leftovers
Leftover Keto Breakfast Casserole keeps beautifully! Once cooled, cover tightly or transfer portions to airtight containers. Store in the fridge for up to 4 days. Each reheated bite stays just as hearty and tasty.
Freezing
This casserole is a meal-prepper’s dream. For best results, cool completely and wrap individual pieces or the whole dish tightly with plastic wrap and foil. Freeze for up to 2 months. Simply thaw overnight in the refrigerator before reheating.
Reheating
To reheat, pop slices in the microwave for 1-2 minutes, or warm larger portions in a low oven (around 300°F) until heated through. The casserole maintains its creamy texture and savory depth—perfection for a speedy, satisfying breakfast.
FAQs
Can I make Keto Breakfast Casserole ahead of time?
Absolutely! You can assemble everything the night before, cover, and refrigerate. Simply bake in the morning (adding a few extra minutes since it’ll be cold) for a fresh, piping-hot breakfast with minimal effort.
What other vegetables can I add?
Feel free to toss in mushrooms, zucchini, or even some chopped broccoli—just ensure any extra veggies are cooked and moisture is drained off, so the casserole stays perfectly set and not watery.
Can I swap the meats or make it vegetarian?
Definitely! Swap turkey sausage or omit the bacon for a lighter version. For a vegetarian take, skip the meats and boost the veggies or add your favorite meat-free sausage alternatives for hearty flavor.
Is this recipe kid-friendly?
Kids tend to love the cheesy, familiar flavors in this dish! You can reduce spices or diced veggies if your little ones are picky, but most find the casserole comforting and mild enough to enjoy.
Can I double the recipe for a crowd?
Yes! Keto Breakfast Casserole scales up beautifully. Use two baking dishes or a larger one if available—just ensure the casserole isn’t too thick so the eggs cook evenly. Perfect for meal trains, brunches, or holiday mornings.
Final Thoughts
If you’re searching for a go-to breakfast that’s a breeze to whip up, bursting with flavor, and completely keto-friendly, this Keto Breakfast Casserole is the answer. Try it once and you’ll want to make it part of your regular breakfast rotation—it’s just that good!
Print
Keto Breakfast Casserole Recipe
- Total Time: 50 minutes
- Yield: 8 servings 1x
- Diet: Non-Vegetarian
Description
This Keto Breakfast Casserole is a delicious and satisfying low-carb dish perfect for breakfast or brunch. Packed with eggs, cheese, sausage, and veggies, it’s easy to make and can be prepared ahead of time.
Ingredients
Egg Mixture:
- 8 large eggs
- 1/2 cup heavy cream
- 1 cup shredded cheddar cheese
- 1/2 cup shredded mozzarella cheese
- 1 teaspoon garlic powder
- 1/2 teaspoon smoked paprika
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 2 tablespoons chopped fresh parsley for garnish
Additional Ingredients:
- 8 slices bacon, cooked and crumbled
- 1/2 pound breakfast sausage, cooked and crumbled
- 1/2 medium onion, diced
- 1/2 red bell pepper, diced
- 2 cups fresh spinach, chopped
Instructions
- Preheat the Oven: Preheat the oven to 375°F (190°C) and grease a 9×13-inch baking dish.
- Cook Sausage: Brown and crumble the breakfast sausage in a skillet, then set aside.
- Sauté Veggies: In the same skillet, sauté onion, bell pepper, and spinach until softened.
- Prepare Egg Mixture: Whisk together eggs, cream, spices, then add sausage, bacon, veggies, and cheeses.
- Bake: Pour mixture into baking dish and bake for 30-35 minutes until set and golden.
- Finish and Serve: Garnish with parsley, let cool, slice, and serve warm.
Notes
- You can prepare this casserole ahead of time and refrigerate overnight before baking.
- Swap bacon or sausage for turkey sausage if desired.
- Enhance with mushrooms or zucchini for added veggies.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Breakfast
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 slice
- Calories: 320
- Sugar: 2g
- Sodium: 520mg
- Fat: 26g
- Saturated Fat: 12g
- Unsaturated Fat: 12g
- Trans Fat: 0g
- Carbohydrates: 3g
- Fiber: 1g
- Protein: 19g
- Cholesterol: 225mg
