
Introduction to Creamy Baked Fish on Potato Gratin
There’s something magical about a dish that warms both the heart and the belly. Creamy Baked Fish on Potato Gratin is just that—a comforting meal that feels like a hug on a plate. Whether you’re coming home after a long day or looking to impress your loved ones, this recipe is your go-to solution. It’s simple, satisfying, and packed with flavor. Plus, it’s a great way to sneak in some fish into your diet without any fuss. Trust me, once you try this, it’ll become a staple in your kitchen!
Why You’ll Love This Creamy Baked Fish on Potato Gratin
This dish is a game-changer for busy weeknights. It combines the rich, creamy goodness of baked fish with the comforting crunch of potato gratin, all in one pan. You’ll love how quickly it comes together, making it perfect for those evenings when time is tight. Plus, the flavors meld beautifully, creating a meal that feels indulgent yet is surprisingly easy to prepare. It’s comfort food at its finest!
Ingredients for Creamy Baked Fish on Potato Gratin
Gathering the right ingredients is the first step to culinary success. For this Creamy Baked Fish on Potato Gratin, you’ll need a few key players that come together to create a delightful dish.
- Russet Potatoes: These starchy beauties are perfect for gratin. They become tender and creamy when baked, providing a hearty base.
- Onion: A medium onion adds sweetness and depth to the dish, balancing the richness of the cream.
- Heavy Cream: This is the star of the show, lending a luxurious texture and flavor. For a lighter option, consider half-and-half.
- Shredded Cheddar Cheese: This adds a melty, cheesy goodness that complements the fish beautifully. Feel free to experiment with other cheeses like Gruyère or mozzarella.
- Garlic Powder: A sprinkle of garlic powder enhances the overall flavor without overpowering the dish.
- Salt and Black Pepper: Essential seasonings that bring out the best in every ingredient.
- White Fish Fillets: Cod or tilapia works well here, providing a mild flavor that pairs perfectly with the creamy sauce.
- Olive Oil: A drizzle helps to keep the fish moist and adds a touch of richness.
- Lemon Juice: A splash of lemon brightens the dish, cutting through the creaminess with a refreshing zing.
- Fresh Parsley: This is for garnish, adding a pop of color and a hint of freshness to the final presentation.
For those looking to add a nutritional boost, consider tossing in some spinach or broccoli into the potato layer. And if you crave a crispy topping, mix breadcrumbs with melted butter and sprinkle them on top before the final bake. You can find exact measurements for these ingredients at the bottom of the article, ready for printing!
How to Make Creamy Baked Fish on Potato Gratin
Step 1: Preheat and Prepare
Start by preheating your oven to 375°F. This ensures even cooking for your Creamy Baked Fish on Potato Gratin. While the oven warms up, grab a 9×13-inch baking dish and grease it with cooking spray or butter. This step is crucial; it prevents sticking and makes cleanup a breeze. Trust me, you’ll thank yourself later when it’s time to serve!
Step 2: Combine Potatoes and Onions
In a large bowl, toss together the thinly sliced russet potatoes and onions. Make sure they’re well mixed; this combination is the heart of your gratin. The onions will add a sweet flavor that complements the potatoes beautifully. If you’re feeling adventurous, you can even add a pinch of salt here to enhance the flavors. It’s all about building that delicious base!
Step 3: Create the Cream Mixture
In another bowl, whisk together the heavy cream, garlic powder, salt, and black pepper. This creamy concoction is what makes the dish so indulgent. The garlic powder adds a subtle kick, while the salt and pepper elevate the overall taste. Once it’s well combined, pour this mixture over the potato and onion blend. Stir gently to ensure everything is coated evenly. You want every bite to be creamy goodness!
Step 4: Layer the Potato Mixture
Now it’s time to build your layers! Start by placing half of the potato mixture in the bottom of your greased baking dish. Spread it out evenly, then sprinkle half of the shredded cheddar cheese on top. This cheesy layer will melt into the potatoes, creating a delightful texture. Repeat with the remaining potato mixture and finish with the rest of the cheese. It’s a cheesy dream come true!
Step 5: Add the Fish
In a separate bowl, drizzle the white fish fillets with olive oil and lemon juice. Season them with salt and pepper for extra flavor. Gently place the fish on top of the layered potato gratin. This is where the magic happens! The fish will soak up the creamy goodness as it bakes, making it tender and flavorful. It’s a match made in culinary heaven!
Step 6: Bake
Cover the baking dish with aluminum foil and pop it in the preheated oven. Bake for 30 minutes to allow the flavors to meld and the potatoes to soften. After that, remove the foil and bake for an additional 15-20 minutes. This step is crucial for achieving that golden-brown top. You’ll know it’s done when the fish is cooked through and the potatoes are tender. Your kitchen will smell heavenly!
Step 7: Serve
Once baked, let the dish cool for a few minutes before serving. This helps the layers set a bit, making it easier to serve. Garnish with fresh parsley for a pop of color and a hint of freshness. Now, dig in and enjoy your Creamy Baked Fish on Potato Gratin! It’s a dish that’s sure to impress and satisfy everyone at the table.

Tips for Success
- Use a mandoline slicer for perfectly even potato slices.
- Let the fish sit at room temperature for about 15 minutes before cooking for even baking.
- Don’t skip the foil cover during the first half of baking; it keeps the dish moist.
- Experiment with different cheeses for unique flavors.
- For extra creaminess, add a splash of white wine to the cream mixture.
Equipment Needed
- Baking Dish: A 9×13-inch dish is ideal, but any oven-safe dish will work.
- Mandoline Slicer: For even potato slices; a sharp knife can also do the job.
- Mixing Bowls: Use two bowls for mixing ingredients; any size will do.
- Whisk: Essential for blending the cream mixture; a fork can suffice in a pinch.
Variations
- Vegetable Boost: Add spinach, broccoli, or zucchini to the potato layer for extra nutrition and color.
- Cheese Swap: Try different cheeses like Gruyère, mozzarella, or even a spicy pepper jack for a kick.
- Herb Infusion: Mix in fresh herbs like dill or thyme with the cream for a fragrant twist.
- Gluten-Free Crunch: For a crispy topping, use gluten-free breadcrumbs mixed with melted butter.
- Seafood Medley: Combine different types of fish, like salmon or shrimp, for a seafood extravaganza.
Serving Suggestions
- Side Salad: Pair with a fresh green salad dressed in lemon vinaigrette for a refreshing contrast.
- Crusty Bread: Serve with warm, crusty bread to soak up the creamy sauce.
- Wine Pairing: A chilled Sauvignon Blanc complements the dish beautifully.
- Presentation: Serve in individual ramekins for a charming touch.
FAQs about Creamy Baked Fish on Potato Gratin
Can I use frozen fish for this recipe?
Absolutely! Just make sure to thaw the fish completely before using it. Frozen fish can work well, but it may require a few extra minutes in the oven to cook through.
What type of fish is best for this dish?
I recommend using mild white fish like cod or tilapia. They hold up well during baking and absorb the creamy flavors beautifully. However, feel free to experiment with your favorite fish!
Can I make this dish ahead of time?
Yes! You can prepare the potato gratin and layer the fish on top, then cover and refrigerate it for up to 24 hours. Just add a few extra minutes to the baking time if it’s coming straight from the fridge.
Is this recipe gluten-free?
Yes, this Creamy Baked Fish on Potato Gratin is naturally gluten-free! Just be sure to use gluten-free breadcrumbs if you decide to add a crispy topping.
What can I serve with this dish?
This dish pairs wonderfully with a light side salad or some crusty bread. A chilled glass of Sauvignon Blanc also complements the creamy flavors perfectly!
Final Thoughts
Cooking is more than just a task; it’s an experience that brings joy and connection. This Creamy Baked Fish on Potato Gratin is a perfect example of that. Each bite is a delightful blend of flavors and textures, making it a dish that warms the soul. Whether you’re sharing it with family or enjoying a quiet night in, this recipe is sure to create lasting memories. Plus, it’s easy enough to whip up on a busy weeknight yet impressive enough for special occasions. Dive in, savor the moment, and let this dish become a cherished part of your culinary repertoire!
PrintCreamy Baked Fish on Potato Gratin: A Must-Try Recipe!
A delicious and creamy baked fish served on a bed of flavorful potato gratin, perfect for a comforting meal.
- Prep Time: 20 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 10 minutes
- Yield: 4 servings 1x
- Category: Main Course
- Method: Baking
- Cuisine: American
- Diet: Gluten Free
Ingredients
- 2 large russet potatoes, peeled and thinly sliced (about 4 cups)
- 1 medium onion, thinly sliced
- 2 cups heavy cream
- 1 cup shredded cheddar cheese
- 1 teaspoon garlic powder
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 pound white fish fillets (such as cod or tilapia)
- 1 tablespoon olive oil
- 1 tablespoon lemon juice
- 2 tablespoons fresh parsley, chopped (for garnish)
Instructions
- Preheat your oven to 375°F. Grease a 9×13-inch baking dish with cooking spray or butter.
- In a large bowl, combine the sliced potatoes and onions.
- In another bowl, whisk together the heavy cream, garlic powder, salt, and black pepper. Pour the cream mixture over the potatoes and onions, stirring to combine.
- Layer half of the potato mixture in the bottom of the prepared baking dish. Sprinkle half of the shredded cheddar cheese over the potatoes.
- Add the remaining potato mixture on top and finish with the rest of the cheese.
- In a separate bowl, drizzle the fish fillets with olive oil and lemon juice, then season with salt and pepper. Place the fish fillets on top of the potato gratin.
- Cover the baking dish with aluminum foil and bake for 30 minutes.
- Remove the foil and bake for an additional 15-20 minutes, or until the fish is cooked through and the potatoes are tender and golden brown.
- Let the dish cool for a few minutes before serving. Garnish with fresh parsley.
Notes
- For a lighter version, substitute half-and-half for the heavy cream.
- You can also add vegetables like spinach or broccoli to the potato layer for added nutrition.
- If you prefer a crispy topping, sprinkle some breadcrumbs mixed with a little melted butter on top before the final baking.
Nutrition
- Serving Size: 1 serving
- Calories: 550
- Sugar: 2g
- Sodium: 800mg
- Fat: 30g
- Saturated Fat: 15g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 3g
- Protein: 35g
- Cholesterol: 100mg




