Fish and Potatoes Recipe: Crispy-Skinned Baked Duo in One Pan

This fish and potatoes recipe delivers a perfectly balanced meal where crispy-skinned fish meets tender, golden potatoes—all baked together in one pan for minimal cleanup. The secret lies in seasoning the fish with lemon and herbs while roasting the potatoes until they develop that satisfying crunch.

I developed this method after years of testing different techniques, and it never fails to impress.

The beauty of this recipe is its simplicity: you only need a handful of ingredients and about 45 minutes to transform fresh fish and potatoes into a restaurant-quality dish.

The potatoes get crispy edges while staying fluffy inside, and the fish achieves that perfect balance between tender flesh and crispy skin. It’s the kind of meal that feels indulgent yet remains light and healthy.

What makes this dish truly special is how the flavors come together—bright lemon, aromatic herbs, and the natural richness of the fish and potatoes. The one-pan method ensures everything cooks evenly, and the aromas filling your kitchen will have everyone asking what’s for dinner.

This is comfort food at its finest, elevated just enough to feel like a special occasion.

Serve with a simple salad or steamed vegetables for a complete meal. The leftovers reheat beautifully, making it perfect for meal prep or feeding a crowd. Let’s get started on this foolproof recipe that delivers crispy perfection every time.

Ingredients for fish and potato

This crispy-skinned fish and potatoes recipe transforms simple ingredients into a restaurant-worthy meal with minimal effort.

The fish selection makes all the difference here. Opt for skin-on fillets like cod or halibut—they stay intact during baking and deliver that coveted crispy texture. Whole Foods or specialty seafood markets carry the freshest cuts, but don't overlook your local fishmonger who can often provide superior quality. For potatoes, Russets are ideal—their waxy texture holds up perfectly to roasting. If you're using pre-cut potatoes, pat them completely dry before seasoning to maximize crispiness. The lemon should be bright and fragrant—avoid those mealy, pale ones that sit too long. Fresh herbs like dill and parsley elevate the dish significantly, so if you're using dried, use half the amount specified.

No fresh dill? Dried dill at one-third the quantity works in a pinch, though fresh delivers that bright, herbal punch. Running short on sea bass? Cod or mahi-mahi are excellent alternatives—they hold up well to high heat. For the potatoes, Yukon Golds can replace Russets, though they'll be slightly creamier inside. The smoked paprika adds depth without overpowering; if you prefer a milder flavor, swap it for regular paprika. The cornstarch coating is non-negotiable for crispy skin—don't skip it. And if you're concerned about the fish sticking, parchment paper under the fish fillets solves that problem effortlessly. For the olive oil, store-bought brands like California Olive Ranch work fine, but if you have access to local, cold-pressed oil, it'll add a premium touch.

This dish reheats beautifully—5 minutes at 350°F restores the crispiness remarkably well. Store leftovers in airtight containers for up to 4 days in the fridge. For longer storage, freeze the components separately—potatoes and fish can be frozen for up to 3 months without significant texture loss. When reheating from frozen, bake at 375°F for 15-20 minutes until the internal temperature reaches 145°F. The potatoes can be prepped a day ahead—just store them in cold water until ready to bake. The fish should be seasoned and coated right before baking to maintain its crispy texture. This recipe scales perfectly for crowds—simply double the ingredients and use a larger roasting pan.

Step-by-step instructions for crispy-skinned baked fish and potatoes

Here's the method for achieving perfectly crispy fish and tender potatoes in one pan.

Preheat your oven to 425°F. Cut the 2 lbs russet potatoes into 1-inch cubes—uniform size ensures even cooking. Spread them on a baking sheet and toss with 0.5 cup extra-virgin olive oil, 0.5 tbsp kosher salt, and 0.25 tsp smoked paprika. Roast for 20 minutes, stirring once halfway, until the edges begin to brown.

This initial roast builds flavor and creates a slightly crispy exterior before the fish joins. The potatoes should smell earthy and look golden around the edges—this is your signal to proceed to the next step. If they brown too quickly, reduce the oven temperature slightly for the remaining time.

While the potatoes roast, pat the 4 pieces white fish fillets dry with paper towels—this ensures the cornstarch adheres properly. In a bowl, mix 2 tbsp cornstarch, 1 tbsp kosher salt, 1 tsp ground black pepper, and 0.25 tsp smoked paprika. Lightly coat each fillet, pressing the seasoning into the skin-side.

Let the coated fillets rest for 5 minutes while the potatoes finish roasting. This resting period helps the cornstarch form a crispy crust. Avoid pressing too hard—you want a delicate, even coating that won't flake off during baking.

After 20 minutes, remove the potatoes from the oven and reduce the heat to 375°F. Arrange the seasoned fish fillets, skin-side down, on top of the potatoes. Drizzle with 1 tbsp extra-virgin olive oil and sprinkle with the remaining 0.5 tbsp kosher salt. Return to the oven and bake for 12-15 minutes until the fish flakes easily with a fork.

You'll know the fish is done when the edges turn opaque and the skin separates cleanly from the flesh. The potatoes should be tender when pierced with a fork, with crispy edges from the initial roast. If the fish browns too quickly, tent loosely with foil to prevent overcooking.

Remove the pan from the oven and let it rest for 3 minutes. In a small bowl, mix 0.25 cup chopped fresh dill, 0.25 cup chopped fresh parsley, 2 tbsp cold unsalted butter, and the zest of 1 whole fresh lemon. Spoon this mixture over the fish and potatoes, gently tossing to combine.

Squeeze the juice from the lemon over the top and let the dish rest for another 2 minutes before serving. This final step brightens the flavors and adds a fresh, aromatic finish. The fish should be tender with a crispy skin, and the potatoes should have a satisfying bite in every bite.

Best sauces and condiments for this recipe

Creamy Dill Sauce

This bright, herby sauce elevates your dish instantly. Whisk together ½ cup sour cream, 2 tbsp fresh lemon juice, 1 tbsp chopped fresh dill, 1 tsp Dijon mustard, and ½ tsp kosher salt.

Thin with 1-2 tbsp milk if needed for a smoother consistency. Drizzle over the fish and potatoes before serving for a cooling contrast to the crispy textures. 💛

Garlic-Herb Butter

Melt 2 tbsp unsalted butter with 1 minced garlic clove, 1 tsp chopped parsley, and a pinch of smoked paprika in a small saucepan over low heat until fragrant.

Spoon this aromatic butter over the finished dish just before serving—it adds a luxurious richness that pairs perfectly with the lemony brightness. The butter should be warm but not melted completely.

Tartar Sauce Twist

For a classic touch, blend ½ cup mayonnaise, 1 tbsp capers, 1 tbsp chopped pickles, 1 tsp lemon juice, and ½ tsp Worcestershire sauce until smooth. This tangy sauce cuts through the richness of the fish and adds a briny depth.

I like to serve it on the side for dipping or spooned over the top. Use Hellmann's or Duke's mayo for the best texture.

Lemon-Caper Aioli

Create a bold sauce by mixing ½ cup aioli (store-bought or homemade), 1 tbsp chopped capers, 1 tbsp lemon zest, and 1 tsp chopped chives. This sauce adds a creamy, zesty kick that complements the crispy fish beautifully.

For a homemade aioli, whisk 1 egg yolk, ½ cup olive oil, and 1 tsp lemon juice until emulsified. Serve as a dip or drizzle lightly over the dish.

Spicy Remoulade

For heat lovers, blend ½ cup mayonnaise, 1 tbsp hot sauce (like Tabasco), 1 tsp smoked paprika, 1 tsp lemon juice, and 1 minced garlic clove. This spicy remoulade adds a fiery contrast to the crispy fish and potatoes.

Adjust the heat level by adding more or less hot sauce to taste. It’s perfect for those who love a little kick with their seafood. ✨

Simple Olive Oil Drizzle

Don’t overcomplicate it—sometimes the best sauce is the simplest. Warm 2 tbsp extra-virgin olive oil with 1 minced garlic clove and a pinch of red pepper flakes until fragrant.

Drizzle lightly over the dish just before serving. The olive oil enhances the natural flavors without overpowering them, and the garlic adds a subtle depth that ties everything together.

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