Greek Sausage Breakfast Casserole with Spinach and Feta (Keto)
Looking for a dish that’s not only wholesome but also bursting with flavor? Look no further than this Greek Sausage Breakfast Casserole with Spinach and Feta (Keto). It’s the perfect way to start your day, packed with protein and healthy fats while being low on carbs. This hearty casserole is ideal for meal prep, family gatherings, or just a cozy brunch at home. With the vibrant tastes of sun-dried tomatoes, kalamata olives, and creamy feta, each bite transports you straight to the Mediterranean. Let’s dive into why this casserole deserves a spot on your breakfast table.
Why It Deserves a Spot

This Greek Sausage Breakfast Casserole with Spinach and Feta (Keto) deserves a prime spot in your recipe repertoire for several reasons. First, it’s incredibly easy to prepare, making it suitable even for those busy mornings. Second, it’s a nutrient powerhouse, featuring lean protein from ground chicken Italian sausage, healthy fats from avocado oil, and a generous dose of greens from spinach. Third, it’s a crowd-pleaser! Whether you’re hosting a brunch or simply feeding your family, this dish pleases both adults and kids alike. Lastly, it’s versatile; you can swap out ingredients based on what you have on hand or your personal preferences, ensuring it never gets boring.
Ingredients at a Glance
- 1 Tbsp avocado oil
- 1 small yellow onion, chopped
- 3 cloves garlic, minced
- 1 pound ground chicken Italian sausage (ensure it’s halal)
- 1/2 cup sun-dried tomatoes, drained and chopped
- 1/2 cup kalamata olives, chopped
- 1 cup artichoke hearts, chopped
- 5 ounces baby spinach
- 12 large eggs, well beaten
- 8 ounces feta cheese, crumbled
Tools & Equipment Needed
- Large skillet – For sautĂ©ing the onions, garlic, and sausage.
- Baking dish – A 9×13 inch dish works perfectly for this casserole.
- Mixing bowl – To combine the eggs and other ingredients.
- Wooden spoon or spatula – For stirring and mixing.
- Measuring cups and spoons – For accurate ingredient measurements.
Greek Sausage Breakfast Casserole with Spinach and Feta (Keto): How It’s Done

Step 1: Preheat Your Oven
Preheat your oven to 350°F (175°C). This ensures it’s hot and ready for your wonderful casserole.
Step 2: Sauté the Aromatics
In a large skillet, heat the avocado oil over medium heat. Add the chopped yellow onion and sauté for about 4-5 minutes until softened and translucent. Stir in the minced garlic and cook for an additional minute, just until fragrant.
Step 3: Cook the Sausage
Add the ground chicken Italian sausage to the skillet. Cook, breaking it apart with a spatula, until it’s browned and cooked through, which should take about 6-8 minutes.
Step 4: Combine with Veggies
Once the sausage is cooked, stir in the sun-dried tomatoes, kalamata olives, artichoke hearts, and baby spinach. Cook for another 2-3 minutes until the spinach is wilted.
Step 5: Mix the Eggs and Feta
In a large mixing bowl, whisk together the beaten eggs and crumbled feta cheese. Once well combined, pour this mixture over the sausage and veggie mixture in the skillet. Stir until everything is evenly coated.
Step 6: Bake the Casserole
Transfer the mixture to your prepared baking dish. Spread it evenly and ensure it’s nice and level. Bake in the preheated oven for 30-35 minutes, or until the eggs are set and the top is golden brown.
Step 7: Cool and Serve
Once done, remove the casserole from the oven and let it cool for about 10 minutes. Cut into squares and serve warm. Enjoy your delicious Greek Sausage Breakfast Casserole with Spinach and Feta (Keto) with a side of fresh fruit or a light salad.
International Equivalents

- Ground chicken Italian sausage – Can be replaced with ground turkey or beef, depending on availability.
- Kalamata olives – Substitute with black olives if necessary.
- Sun-dried tomatoes – Fresh tomatoes can be used, but adjust the cooking time accordingly.
- Feta cheese – Try goat cheese or ricotta for a different flavor profile.
Learn from These Mistakes
- Don’t rush the sautéing process; properly cooked onions and garlic enhance the flavor.
- Ensure the sausage is fully cooked; undercooked meat can lead to health risks.
- Allow the casserole to cool before cutting; this helps it set better and makes serving easier.
- Don’t skip the feta cheese; it’s essential for that authentic Greek flavor!
Make-Ahead & Storage
This Greek Sausage Breakfast Casserole with Spinach and Feta (Keto) is perfect for meal prep. You can assemble it a day in advance and store it in the refrigerator, then bake it fresh in the morning. Leftovers can be stored in an airtight container in the refrigerator for up to 4 days. To reheat, just pop it in the microwave or oven until warmed through. You can also freeze portions for up to 3 months; simply thaw overnight in the fridge before reheating.
Frequently Asked Questions
Can I use different types of sausage?
Absolutely! You can try turkey sausage, pork sausage, or even a vegetarian sausage to suit your dietary preferences.
Can this casserole be made dairy-free?
Yes! You can substitute the feta cheese with a dairy-free cheese alternative or simply omit it altogether. You might miss the flavor, but the casserole will still be delicious.
How do I know when the casserole is done?
The casserole is done when the eggs are set and the top is slightly golden. You can insert a knife in the center, and if it comes out clean, it’s ready!
Can I add other vegetables?
Definitely! Feel free to add bell peppers, zucchini, or mushrooms to customize this dish to your liking.
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Wrap-Up
This Greek Sausage Breakfast Casserole with Spinach and Feta (Keto) is more than just a breakfast dish; it’s a meal that brings people together, offering both nourishment and flavor. With its easy preparation and customizable ingredients, it’s a recipe you’ll want to return to time and again. Whether you’re looking to fuel a busy morning or enjoy a leisurely brunch, this casserole is sure to satisfy. So gather your ingredients, preheat that oven, and treat yourself to a delightful start to your day!

Greek Sausage Breakfast Casserole with Spinach and Feta (Keto)
Ingredients
Equipment
Method
- Step 1: Preheat your oven to 350°F (175°C). This ensures it’s hot and ready for your wonderful casserole.
- Step 2: In a large skillet, heat the avocado oil over medium heat. Add the chopped yellow onion and sauté for about 4-5 minutes until softened and translucent. Stir in the minced garlic and cook for an additional minute, just until fragrant.
- Step 3: Add the ground chicken Italian sausage to the skillet. Cook, breaking it apart with a spatula, until it’s browned and cooked through, which should take about 6-8 minutes.
- Step 4: Once the sausage is cooked, stir in the sun-dried tomatoes, kalamata olives, artichoke hearts, and baby spinach. Cook for another 2-3 minutes until the spinach is wilted.
- Step 5: In a large mixing bowl, whisk together the beaten eggs and crumbled feta cheese. Once well combined, pour this mixture over the sausage and veggie mixture in the skillet. Stir until everything is evenly coated.
- Step 6: Transfer the mixture to your prepared baking dish. Spread it evenly and ensure it’s nice and level. Bake in the preheated oven for 30-35 minutes, or until the eggs are set and the top is golden brown.
- Step 7: Once done, remove the casserole from the oven and let it cool for about 10 minutes. Cut into squares and serve warm. Enjoy your delicious Greek Sausage Breakfast Casserole with Spinach and Feta (Keto) with a side of fresh fruit or a light salad.
Notes
- Assemble the casserole a day in advance for easy meal prep.
- Leftovers can be stored in an airtight container in the refrigerator for up to 4 days.
- Freeze portions for up to 3 months; thaw overnight before reheating.
