Delicious Creamy Keto Cod and Spinach Casserole Recipe: A Low Carb Delight

A Delightful Keto Discovery: Creamy Keto Cod and Spinach Casserole

Welcome to a delectable journey where comfort food meets ketogenic principles, all wrapped up in a dish that’s sure to satisfy your cravings and dietary needs. The Creamy Keto Cod and Spinach Casserole is a harmonious blend of flaky cod, luscious cream, and nutrient-packed spinach, baked to golden perfection. This recipe isn’t just about tantalizing your taste buds; it’s designed to fit seamlessly into your keto lifestyle, providing a low-carb, high-fat meal that’s as nutritious as it is delicious.

Whether you’re a seasoned keto enthusiast or just starting, this casserole is the perfect addition to your recipe collection. It’s a testament to the versatility of keto cooking, proving that you don’t have to sacrifice flavor for fitness. So, let’s dive into this culinary creation and discover why it’s a top pick for a keto-friendly dinner.

Creamy Keto Cod and Spinach Casserole

The Story Behind the Casserole

The Creamy Keto Cod and Spinach Casserole is more than just a meal; it’s a culmination of a quest for the perfect keto-friendly comfort food. Inspired by the classic flavors of seafood and cheese, this recipe brings together the best of both worlds, providing a dish that’s both hearty and healthy.

Cod, the star of this casserole, is an excellent source of lean protein and omega-3 fatty acids, making it an ideal choice for those on a ketogenic diet. When paired with the high-fat content of heavy cream and cheese, it creates a balanced meal that aligns with the keto ethos of low carbs and high fats. The addition of spinach not only introduces a pop of color and texture but also infuses the dish with vitamins and minerals essential for a well-rounded diet.

Each ingredient has been carefully selected to ensure that you’re getting a meal that’s not only satisfying but also conducive to maintaining ketosis. The blend of spices, including garlic and onion powders, along with paprika, adds depth to the flavor profile without adding unnecessary carbs. This casserole is a testament to the idea that keto meals can be indulgent and nutritious at the same time.

Ingredients for Creamy Keto Cod and Spinach Casserole

Mastering the Casserole: Tips & Tricks

Creating the perfect Creamy Keto Cod and Spinach Casserole is an art that involves more than just following the recipe. It’s about understanding the nuances that turn good into great. Here are some expert tips to elevate your casserole:

Tip #1: When sautéing the spinach, make sure to drain any excess liquid before adding it to the baking dish. This prevents the casserole from becoming watery and ensures that every bite is packed with flavor.

Tip #2: For the creamiest sauce, add the heavy cream slowly and stir constantly to avoid curdling. A smooth sauce is key to the luxurious texture of this dish.

Tip #3: Don’t rush the baking process. The casserole should be baked until the top is a beautiful golden brown, and the fish flakes easily with a fork. This not only ensures proper cooking but also develops a rich flavor profile.

Creamy Keto Cod and Spinach Casserole in Baking Dish

Delicious Variations to Try

Spicy Kick Casserole

For those who enjoy a bit of heat, add a teaspoon of red pepper flakes to the sauce. This will infuse the casserole with a spicy kick that complements the creamy texture and enriches the overall flavor.

Crunchy Almond Topping

Enhance the texture by adding a crunchy almond topping. Mix crushed almonds with melted butter and sprinkle over the casserole before baking. It adds a delightful crunch and a nutty flavor that pairs wonderfully with the delicate cod.

Mediterranean Twist

Incorporate a Mediterranean twist by adding chopped sun-dried tomatoes and Kalamata olives to the spinach layer. The tangy and savory notes will transport your taste buds to the sunny shores of the Mediterranean.

Keto-Friendly Substitutions

Adapting the Creamy Keto Cod and Spinach Casserole to suit your preferences or pantry availability is simple with these keto-friendly substitutions:

Substitution #1: If you don’t have cod, any firm white fish like haddock or tilapia can be used as a substitute. These fish varieties still offer a mild flavor and flaky texture that works well with the creamy sauce.

Substitution #2: For a dairy-free option, replace heavy cream with full-fat coconut milk and use a dairy-free cheese alternative. This will still provide the richness needed for the casserole while catering to those with dairy sensitivities.

Substitution #3: Instead of cheddar, try using Gruyère or Emmental cheese for a different flavor profile. These cheeses melt beautifully and add a nutty, slightly sweet taste to the dish.

Frequently Asked Questions

Question Answer
Can I prepare this casserole ahead of time? Yes, you can assemble the casserole and refrigerate it before baking. Just add an extra 5-10 minutes to the cooking time if baking from cold.
Is this casserole freezer-friendly? It’s best enjoyed fresh, but you can freeze the baked casserole. Thaw in the fridge overnight and reheat in the oven until warm throughout.
Can I use frozen spinach? Absolutely, just make sure to thaw and squeeze out excess moisture before using it in the recipe to prevent sogginess.
How do I know when the fish is cooked? The fish is done when it flakes easily with a fork and reaches an internal temperature of 145°F (63°C).
Can I add other vegetables to the casserole? Yes, low-carb vegetables like mushrooms or bell peppers can be added. Just sauté them with the spinach to ensure they’re cooked through.


Creamy Keto Cod and Spinach Casserole

This Creamy Keto Cod and Spinach Casserole is a luscious blend of tender cod, rich creamy sauce, and nutritious spinach, baked to perfection for a comforting and satisfying keto-friendly meal.
5 from 1 vote
Prep Time 20 minutes
Cook Time 30 minutes
Total Time 50 minutes
Course Dinner
Cuisine American
Servings 4 people
Calories 510 kcal


  • Large skillet
  • Saucepan
  • Baking dish
  • Measuring cups and spoons
  • Cheese grater


  • 1 ½ pounds cod fillets fresh or thawed
  • 10 ounces fresh spinach
  • 1 cup heavy cream
  • 1 cup grated cheddar cheese
  • ¼ cup grated Parmesan cheese
  • 2 tablespoons unsalted butter
  • 1 tablespoon olive oil
  • 1 teaspoon garlic powder
  • ½ teaspoon onion powder
  • ½ teaspoon paprika
  • Salt and pepper to taste


  • Preheat your oven to 375°F (190°C).
  • In a large skillet over medium heat, add the olive oil and spinach. Sauté until the spinach is wilted, about 3-4 minutes. Remove from heat and set aside.
  • In a saucepan, melt the butter over medium heat. Stir in the garlic powder, onion powder, paprika, salt, and pepper. Cook for 1 minute until fragrant.
  • Lower the heat and add the heavy cream, stirring continuously until the mixture begins to simmer. Add half of the grated cheddar cheese and all of the Parmesan cheese, stirring until the cheeses are melted and the sauce is smooth.
  • Grease a baking dish with a bit of butter or olive oil.
  • Place the wilted spinach at the bottom of the baking dish.
  • Arrange the cod fillets on top of the spinach. Season the fillets with a pinch of salt and pepper.
  • Pour the creamy cheese sauce over the cod and spinach.
  • Sprinkle the remaining cheddar cheese on top.
  • Bake in the preheated oven for 25-30 minutes, or until the fish flakes easily with a fork and the top is golden brown.
  • Remove from oven and let it rest for 5 minutes before serving.


Ensure your cod fillets are patted dry to prevent excess water from making the casserole soggy.
For a crispier top, broil the casserole for the last 2-3 minutes of baking.
Leftovers can be stored in an airtight container in the refrigerator for up to 3 days.


Calories: 510kcalCarbohydrates: 5gProtein: 42gFat: 35gFiber: 2gNet Carbs: 3g
Keyword creamy keto bake, Keto Casserole, keto fish dinner, Low Carb Cod Recipe, spinach casserole
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