Keto Sausage and Spinach Casserole Recipe is one of those comforting dishes that fits perfectly into a low-carb lifestyle without skimping on flavor. It’s rich, creamy, and loaded with hearty Italian sausage and fresh spinach, all baked together into a golden, bubbly casserole. Whether you’re meal prepping for the week or craving a cozy dinner on a chilly evening, you’ll find this recipe hits all the right notes. So if you love dishes that combine savory sausage with a velvety cheese sauce and a touch of green goodness, you’re in for a treat with this Keto Sausage and Spinach Casserole Recipe.
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What Makes This So Good
This Keto Sausage and Spinach Casserole Recipe is packed with savory depth from the Italian sausage, balanced beautifully by the freshness of spinach and a luscious, creamy base. I love how the mozzarella cheese melts on top, creating those irresistible crispy, golden edges that elevate every bite. It’s so satisfying without any fuss, making it ideal for busy nights or lazy weekends.
- Big Flavor, Minimal Fuss: The sausage and garlic sauté creates an easy but deeply delicious base that carries through the whole dish.
- Family-Friendly: This casserole pleases both kids and adults alike, thanks to its creamy texture and familiar flavors.
- Simple Ingredients: You don’t need fancy items—just pantry staples and fresh spinach to make this hearty delight.
- Works Any Night: Prep it ahead or whip it up last-minute; it bakes quickly and feeds a crowd or meal preps beautifully.
Ingredient Guide
Choosing the right ingredients helps you get the best results with your Keto Sausage and Spinach Casserole Recipe. I always recommend fresh, quality produce and good Italian sausage to create those rich flavors and textures you’ll love.
- Italian Sausage: Mild or spicy works—grab sausage with natural casings removed for easy browning and crumbled texture.
- Fresh Spinach: Use fresh, chopped spinach for vibrant color and fresh flavor—frozen works in a pinch but drain excess moisture well.
- Heavy Cream & Cream Cheese: These create the creamy sauce base—softened cream cheese blends smoothly and keeps the texture luscious.
- Mozzarella Cheese: Shredded mozzarella melts perfectly—go for whole milk mozzarella for the best melt and flavor.
- Garlic: Fresh minced garlic adds a pop of savory aroma that pairs beautifully with the sausage.
- Eggs: They help bind the casserole while keeping it rich and keto-friendly.
- Olive Oil: For sautéing—choose extra virgin for good flavor and a healthy fat boost.
Quick Reminder: Full measurements are in the recipe card below.
How to Make Keto Sausage and Spinach Casserole Recipe
Step 1 — Prep & Ready
Start by preheating your oven to 350°F (175°C) to ensure it’s hot and ready when your casserole mixture is done. While the oven warms, chop the fresh spinach roughly and mince the garlic cloves so they’re ready to go. Remove the sausage from its casing if it’s not already and break it into small pieces so it cooks evenly. This prep work makes the whole process smooth and keeps your kitchen vibes stress-free.
Step 2 — Cook with Confidence
Heat olive oil in a large skillet over medium heat. Add the sausage and cook until it’s beautifully browned and starting to crisp on the edges — you’ll notice a wonderful savory aroma filling your kitchen at this stage. Then stir in the minced garlic and cook for just a minute until fragrant. Toss in the chopped spinach and cook it down until it wilts completely, which usually only takes a couple of minutes. This flavorful mixture is the heart of your casserole.
Step 3 — Finish & Serve
In a bowl, whisk the heavy cream, softened cream cheese, eggs, salt, and pepper until smooth and creamy. Fold the sausage and spinach mixture into this egg mixture until everything is evenly combined. Pour the whole thing into a greased 9×9-inch baking dish and sprinkle the shredded mozzarella on top. Bake for 25 to 30 minutes or until the casserole is set through the center and you see golden brown bubbling cheese at the edges. Let it rest a few minutes after baking — it helps the casserole firm up and makes serving neater. The cozy aroma and crispy-cheesy top always make me smile at this point!
Extra Helpful Tips
I’ve found a few tricks over time that help make this Keto Sausage and Spinach Casserole Recipe foolproof and even more delicious:
- Watch for This Sign: When browning the sausage, wait until it’s nicely caramelized – those crispy bits add amazing flavor and texture.
- Temperature Trick: Room-temperature cream cheese blends easier into the egg mixture—don’t skip this step as it prevents lumps in your custard.
- Prep-Ahead Option: You can mix everything the night before and keep it covered in the fridge; just add the mozzarella and bake fresh when ready.
- Avoid This Common Mistake: Don’t overload the spinach or use too much frozen spinach without draining—it can create excess water that makes the casserole soggy.
Serve & Enjoy
Easy Enhancements
To take your Keto Sausage and Spinach Casserole Recipe up a notch, try adding fresh herbs like chopped basil, parsley, or thyme right before baking—the fresh green notes brighten the rich flavors. You might also sprinkle a bit of parmesan cheese with the mozzarella for a tangy kick or add a pinch of red pepper flakes if you like a little heat. Drizzling a bit of garlic-infused olive oil on top before serving never hurts either!
Tasty Pairings
This casserole pairs wonderfully with a crisp green salad dressed with lemon vinaigrette to contrast the creamy richness. For a cozy meal, steamed broccoli or roasted cauliflower work beautifully too. If you’re looking for a beverage, a dry white wine or sparkling water with lemon makes a refreshing complement.
Quick Plating Tips
After baking, sprinkle some fresh parsley or chives on top for a pop of color and freshness. Serving it directly from the baking dish adds to its comfort-food charm, but if you want to plate it up, spoon onto warmed plates and add a wedge of lemon on the side for a fresh squeeze. Those little details make it look like you spent hours crafting it.
Store, Freeze & Reheat
Fridge Storage
Once cooled completely, store your Keto Sausage and Spinach Casserole Recipe in an airtight container in the fridge. It keeps well for up to 4 days. You might notice it firms up and flavors meld even better overnight, making leftovers just as delightful as day one.
Freezer Friendly?
This casserole freezes nicely for up to 2 months. For best results, portion it into individual airtight containers or wrap the whole dish tightly in foil and plastic wrap to avoid freezer burn. Thaw in the fridge overnight before reheating to prevent sogginess and keep its creamy texture intact.
Reheat Like New
To reheat, the oven is your best bet—warming at 325°F (160°C) for 15-20 minutes keeps the casserole moist and creamy while reviving the crisp cheese topping. If you’re in a hurry, microwave in short bursts with a damp paper towel over the top to lock in moisture, but the texture won’t be quite as perfect as fresh-baked.
Keto Sausage and Spinach Casserole Recipe FAQs
Absolutely! Turkey sausage is a leaner option and will still deliver great flavor, though the dish might be a bit less rich. Just brown it thoroughly the same way to build flavor.
Is this casserole suitable for meal prep?
Can I add other vegetables to the casserole?
Final Flavor Thoughts
I hope you enjoy making and savoring this Keto Sausage and Spinach Casserole Recipe as much as I do. It’s one of those dishes that feels both indulgent and wholesome, perfect for sharing with loved ones or treating yourself. If you try it, don’t forget to leave a star rating or share your tweaks in the comments—maybe you added a favorite herb or swapped in a different cheese? Either way, it’s always exciting to hear how this cozy casserole works in your kitchen.
Print📖 Recipe
Keto Sausage and Spinach Casserole Recipe
This Keto Sausage and Spinach Casserole is a hearty, low-carb dish perfect for breakfast, brunch, or dinner. Featuring flavorful Italian sausage, fresh spinach, and a creamy cheese mixture baked to golden perfection, it offers a comforting yet healthy meal option suitable for ketogenic diets.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: 6 servings
- Category: Casserole
- Method: Baking
- Cuisine: American
- Diet: Low Carb, Keto
Ingredients
Meat and Vegetables
- 1 pound Italian sausage (mild or spicy), casings removed
- 4 cups fresh spinach, chopped
- 2 cloves garlic, minced
Dairy and Eggs
- 1 cup heavy cream
- 1 cup shredded mozzarella cheese
- ½ cup cream cheese, softened
- 3 large eggs
Others
- Salt and pepper to taste
- Olive oil for cooking
Instructions
- Preheat the oven: Set your oven to 350°F (175°C) to prepare for baking the casserole.
- Cook the sausage: Heat olive oil in a large skillet over medium heat. Add the Italian sausage, removing casings first, and cook it until browned all over.
- Sauté garlic and spinach: Stir in the minced garlic and chopped spinach into the browned sausage. Continue cooking until the spinach wilts, mixing well to combine flavors.
- Prepare creamy mixture: In a mixing bowl, whisk together the heavy cream, softened cream cheese, eggs, salt, and pepper until the mixture is smooth and homogenous.
- Combine mixtures: Fold the cooked sausage and spinach mixture into the creamy egg blend, ensuring everything is evenly mixed.
- Assemble casserole: Pour the combined mixture into a greased 9×9-inch baking dish. Sprinkle shredded mozzarella cheese evenly over the top.
- Bake: Place the dish in the preheated oven and bake for 25-30 minutes, or until the casserole is set and the cheese topping is golden and bubbly.
- Cool and Serve: Allow the casserole to cool slightly before slicing. Serve warm for the best flavor.
Notes
- You can use either mild or spicy Italian sausage depending on your heat preference.
- For extra flavor, consider adding chopped onions or bell peppers when cooking the sausage.
- This casserole can be made ahead and refrigerated before baking; just increase the baking time slightly if baking cold.
- Swap mozzarella for cheddar or a blend of your favorite cheeses for variation.
- Ensure eggs and cream cheese are at room temperature for easier mixing.
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