5-Ingredient Parmesan Crusted Cod (Ready in 25 Minutes)

This parmesan crusted cod comes together with five main ingredients and about ten minutes of hands-on work, then the oven does the rest. The crust turns golden and crisp while the fish underneath stays tender and flaky.

You get a dinner that feels a little more put-together than a plain baked fillet, but it never asks for anything complicated. It is the kind of recipe you can make on a Tuesday and feel good about serving.

Why This Cod Dinner Works

The mayonnaise layer does two things at once. It seals moisture inside the fish so the lean cod never dries out, and it gives the parmesan and panko something to grab onto so the crust stays put.

Under the broiler that crust puffs and turns deeply golden in a couple of minutes. The edges get lacy and crunchy while the parmesan melts into little savory pockets that taste like the best part of a cheesy cracker.

Ingredients

• 1 1/2 lbs thick cod fillets (4 pieces): boneless, skinless, patted very dry with paper towels
• 1/2 cup mayonnaise: full-fat gives the richest crust, but Greek yogurt works in a pinch
• 1/2 cup freshly grated parmesan cheese: the powdery stuff in a can won’t melt the same way
• 1/2 cup panko breadcrumbs: regular unseasoned, not Italian-style
• 1 tsp garlic powder: not garlic salt
• 1/4 tsp kosher salt: plus a little more for the fish
• 1/4 tsp black pepper: freshly cracked if you have it
• Lemon wedges: for squeezing over at the table
• Olive oil spray or a drizzle of olive oil: for the pan

Variations / Substitutions

• Swap the fish: haddock, pollock, or thick tilapia fillets all work with the same cook time, just check for doneness.
• Swap the mayo: sour cream or plain full-fat Greek yogurt both make a good base, but the crust browns a little less aggressively.
• Change the cheese: pecorino romano adds more salt and sharpness, so reduce the added salt.
• Add herbs: a teaspoon of dried oregano or thyme mixed into the crumb lends an herby note that pairs nicely with lemon.
• Make it spicy: a pinch of cayenne or red pepper flakes in the crumb mixture wakes everything up.

If you like crisp-topped fish, you might also enjoy the same method on Lemon Dill Salmon.

How to Make Parmesan Crusted Cod

Step 1: Coat the Cod with Mayo

Preheat the oven to 400°F (200°C) and line a baking sheet with parchment paper. Place the 4 cod fillets on the sheet and season them lightly with salt and pepper. Scoop 2 tablespoons of the 1/2 cup mayonnaise onto each fillet and spread it out to cover the top in an even layer, right to the edges.

The mayo should look like a thin, glossy coat, not a mound. It will mostly disappear into the crust while baking, so no one will taste a spoonful of mayonnaise, just a juicy piece of fish.

Step 2: Press on the Parmesan Panko Crust

In a small bowl, mix the 1/2 cup parmesan, 1/2 cup panko, and 1 teaspoon garlic powder. Stir in the 1/4 teaspoon salt and 1/4 teaspoon pepper. Spoon the crumb mixture over the mayo-coated surface of each fillet, dividing it evenly, then use your fingers to press the crumbs firmly into the mayo so they adhere.

You want a solid layer that covers the top completely. The crust will look loose and dry at first, but the mayo underneath binds it as soon as it hits the oven heat.

Step 3: Bake the Cod

Give the tops of the fillets a light spray of olive oil or a small drizzle, which helps the crust toast. Slide the pan into the oven and bake for 12 to 15 minutes, until the fish flakes easily with a fork and the crust is starting to turn pale golden at the edges.

The kitchen will smell faintly nutty from the parmesan. If you have an instant-read thermometer, the thickest part of the fish should read 145°F (63°C).

Step 4: Broil for a Golden Top

Switch the oven to broil on high and move the rack about 6 inches from the heat. Broil the fillets for 2 to 3 minutes, keeping a close eye on them, until the crust turns deep golden brown and bubbly in spots. The panko will crisp and the cheese will melt into little oily pockets.

Do not walk away during this step. The sugar in the panko can go from golden to charred in seconds under a strong broiler.

Step 5: Plate and Finish with Lemon

Use a thin spatula to transfer each fillet to a plate, holding it steady so the crust stays on top. Squeeze a lemon wedge over the fish while it is still hot and serve right away.

The crust should be crisp enough that you hear a slight crack when you cut through it with a fork.

Tips for a Crisp Parmesan Crust

• Let the fish sit on the counter for 10 minutes: while the oven heats. Cold cod straight from the fridge can seize up and release more liquid during baking, which softens the bottom.
• Press the crumb layer firmly.: A light dusting will slide off into the pan, but really packing it onto the mayo gives you a shell that stays intact.
• Freshly grate the cheese.: Pre-shredded parmesan contains starches that keep it from melting into those crisp, lacy bits under the broiler.
• Watch the broiler the whole time.: Once the crust turns a deep caramel brown, pull the pan, even if it has only been 90 seconds.

Bake times by thickness:

Fish is done when it flakes easily and reaches 145°F (63°C).

Keeping Leftover Cod Fresh

Refrigerate: Store cooled fillets in an airtight container for up to 3 days. The crust loses some crunch overnight, but the flavor stays good.

Reheating: Place the cod on a baking sheet and warm it in a 350°F oven for 8 to 10 minutes. The microwave will turn the crust soft and gummy, so skip it unless you plan to scrape the topping off and just eat the fish.

What to Serve With Parmesan Crusted Cod

A simple side with a little acidity or crunch balances the richness of the crust. Roasted asparagus tossed with olive oil and a squeeze of lemon cooks on the rack below the fish while it bakes. Buttery steamed green beans with slivered almonds add a crisp contrast. For something starchy, a scoop of fluffy jasmine rice or quick-cooking couscous soaks up any juices on the plate.

Frequently Asked Questions

Can I use frozen cod?

Yes, thaw it completely in the fridge overnight and pat the fillets very dry with paper towels before seasoning. Excess moisture will steam the crust instead of browning it.

Is pre-grated parmesan okay in a pinch?

It will work, but the crust will be less crisp and won’t develop the same golden, lacy spots that freshly grated cheese gives you.

Can I make this gluten free?

Trade the panko for gluten-free panko. It produce a crisp topping, though the texture will differ slightly.

Can I cook this in an air fryer?

Yes. Set the air fryer to 400°F and cook the prepared fillets for 8 to 10 minutes, checking after 7. You may not need the broil step since the air fryer browns well on its own.

Parmesan Crusted Cod Recipe

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Prep Time 10 minutes mins

Cook Time 18 minutes mins

Total Time 28 minutes mins

Servings: 4 servings

Calories: 410

Ingredients Method Notes

Ingredients

  

• 1 1/2 lbs thick cod fillets (4 pieces)
• 1/2 cup mayonnaise
• 1/2 cup freshly grated parmesan cheese
• 1/2 cup panko breadcrumbs
• 1 tsp garlic powder
• 1/4 tsp kosher salt
• 1/4 tsp black pepper
• Lemon wedges, for serving
• Olive oil spray or drizzle

Method

 

1. Preheat oven to 400°F (200°C). Line a baking sheet with parchment, place cod on it, season lightly with salt and pepper, and spread 2 tbsp mayonnaise over the top of each fillet.
2. Mix parmesan, panko, garlic powder, salt, and pepper. Press the crumb mixture firmly onto the mayo-coated fish.
3. Lightly spray or drizzle the tops with olive oil. Bake 12 to 15 minutes until fish flakes easily and crust starts to turn golden.
4. Switch to broil on high, move rack 6 inches from heat, and broil 2 to 3 minutes until the crust is deep golden and bubbly.
5. Transfer fillets to plates, squeeze lemon over the top, and serve immediately.

Notes

Serve the cod right out of the oven while the crust is at its crispiest. If you are cooking for fewer people, the same method works on just two fillets; halve the topping mixture and keep the baking time close to the same for thick pieces.