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Introduction

If you’re looking for a nutritious yet indulgent meal, Crispy Cheesy Fish & Spinach Casserole is a perfect choice. This dish combines the mild, flaky texture of fish with creamy spinach, rich cheese, and a golden, crunchy topping. It’s a delightful balance of flavors and textures that make for a comforting, satisfying meal.

Packed with protein, omega-3 fatty acids, vitamins, and minerals, this casserole is not only delicious but also a healthy option for family dinners. It’s easy to prepare and can be customized with different cheeses, seasonings, and crunchy toppings. Whether you’re serving it on a busy weeknight or for a special gathering, this dish will surely impress.

Why You’ll Love This Recipe

• Deliciously Crispy & Cheesy – A golden-baked, crunchy top with gooey, melted cheese.
• Nutritious & Balanced – Packed with lean protein, leafy greens, and healthy fats.
• Easy & Convenient – Simple preparation with minimal hands-on time.
• Great for Meal Prep – Make ahead and reheat for quick meals.
• Family-Friendly – A great way to get kids to enjoy fish and greens.

Ingredients

Main Ingredients:

• 4 fillets of white fish (cod, tilapia, or haddock)
• 1 tablespoon olive oil
• 2 cups fresh spinach (or 1 cup frozen, thawed and drained)
• 1 cup shredded mozzarella cheese
• ½ cup grated Parmesan cheese
• ½ cup cream cheese, softened
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• ½ teaspoon paprika
• Salt and black pepper to taste
• 1 cup milk (whole or 2%)
• 1 tablespoon lemon juice

Crunchy Topping:

• ½ cup breadcrumbs (panko or regular)
• ¼ cup grated Parmesan cheese
• 2 tablespoons melted butter
• ½ teaspoon dried oregano or parsley

Optional Additions:

• ¼ teaspoon red pepper flakes (for heat)
• 1 teaspoon Dijon mustard (for a tangy flavor)
• ½ teaspoon dried thyme or Italian seasoning
• ½ cup cooked rice or quinoa (to make it more filling)

Step-by-Step Instructions

1. Prepare the Fish

1. Preheat your oven to 375°F (190°C).
2. Lightly grease a 9×13-inch baking dish with olive oil or butter.
3. Pat the fish fillets dry with paper towels and season both sides with salt, black pepper, garlic powder, and paprika.
4. Arrange the fish fillets in a single layer in the prepared baking dish.

2. Make the Creamy Spinach Mixture

1. In a pan over medium heat, add 1 tablespoon olive oil.
2. Add fresh spinach and sauté for 2–3 minutes until wilted. (If using frozen spinach, ensure it is fully drained.)
3. Remove from heat and mix in cream cheese, mozzarella cheese, lemon juice, and milk.
4. Stir well until the mixture is smooth and creamy.
5. Spread the creamy spinach mixture evenly over the fish fillets.

3. Prepare the Crunchy Topping

1. In a small bowl, combine breadcrumbs, grated Parmesan, melted butter, and dried oregano.
2. Mix well until the breadcrumbs are evenly coated with butter.
3. Sprinkle the mixture generously over the top of the casserole.

4. Bake the Casserole

1. Cover the dish with aluminum foil and bake for 20 minutes.
2. Remove the foil and bake for another 10–15 minutes until the topping is golden brown and crispy.
3. The fish should be flaky and cooked through, with an internal temperature of 145°F (63°C).

5. Serve & Enjoy

1. Let the casserole rest for 5 minutes before serving.
2. Garnish with fresh parsley or an extra squeeze of lemon juice for added freshness.
3. Serve warm with a side of rice, mashed potatoes, or a simple green salad.

Serving Suggestions

• With Garlic Bread – A side of crusty garlic bread pairs beautifully with the creamy spinach filling.
• Over Pasta or Rice – Serve over cooked pasta, rice, or quinoa for a heartier meal.
• With a Fresh Salad – A light cucumber or Greek salad complements the rich flavors.
• As a Sandwich Filling – Use leftovers as a delicious filling for a toasted sandwich or wrap.

Tips for the Best Crispy Cheesy Fish & Spinach Casserole

• Choose the Right Fish – White, mild-flavored fish works best, but salmon can also be used for a richer taste.
• Get the Perfect Crunch – Panko breadcrumbs create a crispier topping than regular breadcrumbs.
• Don’t Overcook the Fish – Keep an eye on baking time to prevent dryness.
• Make it Gluten-Free – Use gluten-free breadcrumbs or crushed nuts for the topping.
• Use Freshly Grated Cheese – Freshly grated cheese melts better and has superior flavor compared to pre-shredded cheese.

Variations

• Low-Carb & Keto Version – Swap breadcrumbs with crushed pork rinds or almond flour for the topping.
• Spicy Kick – Add chili flakes or hot sauce to the spinach mixture.
• Extra Veggies – Mix in mushrooms, zucchini, or roasted red peppers for added nutrients.
• Dairy-Free Option – Use dairy-free cheese and coconut milk instead of regular cheese and milk.
• Different Cheese Blend – Try Gouda, Swiss, or sharp cheddar for a unique twist.

Storage & Reheating

Storing Leftovers

• Allow the casserole to cool completely before storing.
• Store in an airtight container in the refrigerator for up to 3 days.
• Freeze for up to 2 months in a freezer-safe container.

Reheating

• Oven: Reheat at 350°F (175°C) for 15 minutes to maintain crispiness.
• Microwave: Heat in short intervals, covering with a damp paper towel to prevent drying out.
• Air Fryer: Reheat at 350°F (175°C) for 5–7 minutes to restore the crispy topping.

Conclusion

The Crispy Cheesy Fish & Spinach Casserole is a flavorful, healthy, and satisfying dish perfect for any occasion. With its creamy spinach base, flaky fish, melted cheese, and crispy topping, it’s sure to become a favorite in your household.

Whether you’re making it for a quick dinner, meal prep, or a comforting weekend meal, this casserole is versatile and easy to customize. Try this recipe today and enjoy a delicious, wholesome meal that everyone will love!