Keto Sausage and Spinach Casserole Recipe

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Cozy Keto Sausage and Spinach Casserole Recipe, Made Simple

There’s something undeniably comforting about a warm casserole on a calm weekend morning or laid-back dinner. This Keto Sausage and Spinach Casserole Recipe is my go-to when I want that cozy, toasty, and buttery vibe without any fuss or carb overload.

I love how the spicy, golden-browned sausage blends effortlessly with wilted spinach to bring a fresh earthiness, while the silky mix of cream, eggs, and cheeses wraps everything in a luscious, rich embrace. You’ll find this recipe is both hearty and light, packed with flavor but kind to your keto goals.

Whether you’re a seasoned low-carb fan or just dipping your toes into the keto world, this casserole feels like a warm hug from the inside out — perfect for sharing or savoring solo.

Ingredient Lowdown

• Italian Sausage (1 lb): Choose mild or spicy to suit your taste. The fat from the sausage adds richness and moisture.
• Fresh Spinach (4 cups, chopped): Provides vibrant green color and a tender, earthy contrast. You can swap with kale or Swiss chard if you like.
• Heavy Cream (1 cup): Keeps the casserole luxuriously creamy and keto-friendly.
• Shredded Mozzarella (1 cup): Melts beautifully on top to create a golden, crisp crust.
• Cream Cheese (1/2 cup, softened): Adds tang and silky texture when whisked with eggs and cream.
• Large Eggs (3): Bind everything together and provide body.
• Garlic (2 cloves, minced): Gives the dish a fragrant, savory punch—don’t skip!
• Salt & Pepper: Essential for seasoning and balancing flavors.
• Olive Oil: For browning the sausage and infusing subtle fruity notes.

Set Up for Success

Before you dive in, get everything ready—mise en place is a game changer for smooth cooking. Preheat your oven to 350°F (175°C), grease a 9×9-inch baking dish with a touch of oil or butter for golden edges, and have your ingredients chopped and measured.

Step-by-Step: Keto Sausage and Spinach Casserole Recipe

1. Preheat and prep: Make sure your oven is ready at 350°F (175°C) and grease your baking dish to prevent sticking and promote that crispy golden edge.
2. Brown the sausage: Heat a splash of olive oil in a large skillet over medium heat. Add the sausage, breaking it apart as it cooks to a rich, toasty brown. This step unlocks deep meaty flavors that build the base of your casserole.
3. Sauté garlic and spinach: Stir in minced garlic and chopped spinach to the skillet. Cook just until the spinach wilts and the garlic becomes fragrant—this happens fast, so keep an eye to avoid overcooking and bitterness.
4. Create the creamy mixture: In a large bowl, whisk together heavy cream, softened cream cheese, eggs, salt, and pepper until silky smooth. This mixture bonds all the savory elements beautifully while keeping the texture creamy yet firm.
5. Combine sausage-spinach with cream mix: Pour the warm sausage and spinach mixture into the bowl. Stir gently but thoroughly so every bite has that perfect balance of savory meat and tender greens.
6. Transfer and top: Pour the combined mixture into your greased baking dish. Then sprinkle shredded mozzarella evenly over the top for a luscious golden layer that melts into a satisfying crust.
7. Bake to perfection: Place the dish in your preheated oven and bake for 25-30 minutes. You’re looking for a set filling that jiggles slightly but isn’t liquidy, and a bubbly, golden cheese crust on top that signals it’s ready.
8. Rest before serving: Let the casserole cool for 5-10 minutes once out of the oven. This resting time helps it firm up, making it easier to cut and enhancing flavors as everything settles.

Flavor Twists for Keto Sausage and Spinach Casserole Recipe

• Add diced sun-dried tomatoes or roasted red peppers for bursts of tangy sweetness that contrast beautifully with the savory sausage.
• Swap mozzarella for sharp cheddar or provolone if you want a nuttier, bolder cheesy crust.
• Try fresh herbs like thyme, oregano, or basil stirred into the cream mixture for an aromatic lift.
• For a Mediterranean spin, fold in kalamata olives and sprinkle feta cheese on top before baking.
• Mix in roasted mushrooms or caramelized onions for deeper umami notes and a touch of sweetness.
• Use spicy Italian sausage and add crushed red pepper flakes for those who crave some extra heat.

Storage & Make-Ahead Tips

• Refrigerate: Store leftovers covered in the fridge up to 3 days. Reheat gently in the oven or microwave to keep the texture inviting.
• Freeze: This casserole freezes beautifully. Slice into portions, wrap tightly, and freeze for up to 2 months. Thaw overnight in the fridge before reheating.
• Pre-bake assembly: You can assemble the casserole the night before and bake fresh when ready, saving valuable morning or dinner prep time.
• Reheat tips: Cover the casserole with foil to avoid over-browning, and warm in a 325°F (160°C) oven until heated through.
• Portions: This recipe serves about 4 comfortably but scales up well for crowd-pleasing meal prep.

Keto Sausage and Spinach Casserole Recipe FAQs

• Can I use frozen spinach? Yes! Just thaw and squeeze out excess moisture before sautéing to prevent sogginess.
• Is this recipe dairy-free friendly? Not as is, but you could try coconut cream and dairy-free cream cheese alternatives, though texture and flavor may vary.
• What if I don’t have Italian sausage? Ground pork or turkey with added Italian seasoning makes a good substitute with a milder profile.
• Can I add other veggies? Absolutely! Bell peppers, mushrooms, or zucchini can be sautéed with the sausage for extra color and nutrition.
• How do I know when it’s fully cooked? The center should be just set and not wet or runny when gently shaken—edges will pull away slightly from the dish.

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