Keto Spinach Casserole – Creamy, Cheesy & Low-Carb
If you’re looking for an easy, low-carb side dish that’s packed with flavor, this keto spinach casserole is the perfect recipe. Made with fresh spinach, a creamy cheese sauce, and a crispy golden topping, this dish delivers incredible texture and taste.
Spinach is a nutrient-dense superfood that pairs beautifully with cheese and aromatic seasonings. This casserole is simple to prepare and is great for weeknight dinners, holiday gatherings, or meal prepping.
Even picky eaters will love this cheesy, creamy dish.
Whether served alongside grilled meats, roasted chicken, or as a main course, this hearty, keto-approved casserole is sure to become a household favorite.
Best of all, it takes just a few ingredients and minimal effort to put together.
What is Keto Spinach Casserole?
Keto spinach casserole is a low-carb, high-fat baked dish that combines sautéed spinach, cheese, eggs, and seasonings to create a rich and satisfying meal.
It features spinach for essential nutrients, a creamy cheese sauce for indulgent flavor, and a crispy topping for added texture. This casserole is gluten-free, keto-friendly, and an excellent comfort food alternative to traditional spinach gratin.
Ingredients You’ll Need to Make Keto Spinach Casserole
Main Ingredients
- 10 ounces fresh spinach (or frozen, thawed and drained)
- 1 tablespoon butter
- 3 cloves garlic, minced
- ½ teaspoon salt
- ½ teaspoon black pepper
- ½ teaspoon onion powder
- ¼ teaspoon red pepper flakes (optional)
- 4 ounces cream cheese, softened
- ½ cup heavy cream
- ½ cup sour cream
- 3 large eggs
- 1 ½ cups shredded cheddar cheese
- ½ cup grated Parmesan cheese
For the Topping
- ½ cup shredded mozzarella cheese
- ¼ cup crushed pork rinds or almond flour
- 1 tablespoon melted butter
Substitutions and Variations
- Replace pork rinds with crushed almonds or keto-friendly breadcrumbs.
- Use coconut cream instead of heavy cream for a dairy-free option.
- Add cayenne pepper or chili flakes for extra spice.
- Include diced chicken, ham, or ground sausage for more protein.
- Swap cheddar for Gruyère, gouda, or Monterey Jack for a different flavor.
Step-by-Step Instructions to Make Keto Spinach Casserole
1. Preheat the Oven
- Preheat your oven to 375°F.
- Grease a 9×9-inch baking dish with butter or cooking spray.
2. Sauté the Spinach and Garlic
- Melt butter in a large skillet over medium heat.
- Add garlic, onion powder, salt, and pepper, then sauté for 30 seconds.
- Stir in the spinach and cook for 3-4 minutes until wilted. Remove from heat.
3. Prepare the Creamy Mixture
- In a mixing bowl, combine cream cheese, heavy cream, sour cream, eggs, and Parmesan cheese.
- Stir in ½ cup shredded cheddar cheese until blended.
4. Assemble the Casserole
- Transfer the cooked spinach to the prepared baking dish.
- Pour the cheese mixture over the spinach and mix slightly.
- Sprinkle the top with the remaining cheddar cheese.
5. Add the Crunchy Topping
- In a small bowl, mix crushed pork rinds (or almond flour) with melted butter.
- Sprinkle over the casserole, followed by mozzarella cheese.
6. Bake
- Bake uncovered for 25-30 minutes until golden brown and bubbly.
- Let the casserole rest for 5 minutes before serving.
Common Mistakes to Avoid
- Not draining frozen spinach, which can make the casserole watery.
- Using too much seasoning, which can overpower the dish.
- Skipping the crunchy topping, as it adds texture.
- Overbaking, which can dry out the casserole.
Serving and Presentation Tips
- Garnish with fresh parsley or chives for a pop of color.
- Serve alongside grilled steak, roasted chicken, or baked salmon.
- Use a cast iron skillet for a rustic presentation.
Expert Tips
- Assemble the casserole up to 24 hours in advance and refrigerate before baking.
- Store in an airtight container for up to three months.
- Reheat at 350°F for 15 minutes or microwave individual portions.
Frequently Asked Questions
Can I use frozen spinach instead of fresh?
Yes, but make sure to drain all excess water to prevent the casserole from becoming soggy.
Can I make this casserole ahead of time?
Yes, you can prepare it up to 24 hours in advance. Just add the topping before baking.
Is this casserole gluten-free?
Yes, all the ingredients used are naturally gluten-free.
Can I add meat to this casserole?
Absolutely. Try adding cooked bacon, ham, or shredded chicken for extra protein.
Can I use a different type of cheese?
Yes, Gruyère, gouda, or Monterey Jack work well as substitutes.
How do I store leftovers?
Keep leftovers in an airtight container in the fridge for up to four days.
Can I freeze this casserole?
Yes, let it cool completely, then store in an airtight container for up to three months.
How do I reheat it?
Reheat in the oven at 350°F for 15 minutes or microwave individual portions.
Conclusion
This keto spinach casserole is the perfect way to enjoy a creamy, cheesy, and nutrient-packed side dish while staying low-carb.
Whether you’re looking for a quick weeknight dinner, a holiday side dish, or an easy meal prep option, this casserole is a must-try.
Give it a go and enjoy a rich, satisfying dish that everyone will love.
