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Keto Spinach Casserole

I love spinach, but I hadn't expected this low carb spinach casserole to be so spectacular. The addition of cream cheese, sour cream, and heavy cream gives the dish a decadent feel, making it substantial enough for a main course.
Prep Time10 mins
Cook Time45 mins
Total Time55 mins
Course: Main Course, Side Dish
Cuisine: American
Keyword: Casserole
Servings: 8
Calories: 438.37kcal
Author: Wendy Polisi


  • 1 tablespoon olive oil
  • ½ cup finely chopped onion
  • 1 teaspoon minced garlic
  • 32 ounce frozen chopped spinach thawed and squeezed dry
  • 8 ounces cream cheese cubed at room temperature
  • 1 cup sour cream
  • 1 cup heavy cream
  • 1 ½ cups shredded Gruyere
  • 1 teaspoon sea salt
  • ¼ teaspoon fresh ground black pepper
  • 1 egg beaten
  • ½ cup grated parmesan


  • Preheat your oven to 350° F. Spray a 9 x 9 baking dish with cooking spray.
  • Heat the oil in a large skillet to medium-high heat. Add the onion and cook for 6 minutes; add garlic and cook for 1 more minute.
  • Stir in the spinach and the cream cheese. Turn the heat to low. Cook until the cream cheese is fully incorporated.
  • Remove from heat and stir in the sour cream, heavy cream, Gruyere, salt, and pepper. When the mixture is thoroughly combined, add the egg.
  • Transfer to the prepared baking dish and top with the parmesan cheese.
  • Cook for 35 minutes, until golden brown.


Calories: 438.37kcal | Carbohydrates: 8.41g | Protein: 16.74g | Fat: 38.91g | Saturated Fat: 21.88g | Cholesterol: 140.08mg | Sodium: 692.62mg | Potassium: 784.78mg | Fiber: 2.67g | Sugar: 2.84g | Vitamin A: 11948.91IU | Vitamin C: 33.16mg | Calcium: 515.92mg | Iron: 3.42mg