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Home » Recipes » Main Dish

Last Updated: Dec 28, 2023 by Angela Latimer · 12 Comments

Panko-Crusted Baked Flounder

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Baked flounder pin with 2 images and text divider.

My baked flounder is a fantastic combination of tender flounder fillets and a crispy Panko and Parmesan breadcrumb topping! It's an easy-to-make dinner that you can have in the oven, baked to perfection, and served in 20 minutes!

Baked flounder served with parsley garnish on black plate.
Baked Flounder is an easy-to-make seafood main dish that you can serve up in no time at all!
Jump to:
  • Crispy Oven-Baked Fish
  • ❤️ Why I Love This Recipe
  • 🥘 Ingredients
  • 🔪 How To Bake Flounder
  • 💭 Angela's Pro Tips & Recipe Notes
  • 🥡 Storing & Reheating
  • 🐟 Other Great Fish & Seafood
  • ❓ Recipe FAQs
  • 📖 Recipe Card
  • 💬 Comments & Reviews

Crispy Oven-Baked Fish

Crispy baked flounder is a perfect light weeknight dinner! It’s simply seasoned and topped with an amazing Panko breadcrumb and Parmesan cheese mixture that creates a flavorful and crunchy topping.

This seafood entree is perfectly light but filling, too! Pair it with some light side dishes or a salad, and you’ve got a perfect meal!

Baked Flounder is a crispy, light, and incredibly flavorful dinner!

Flounder is such a delicious, healthy fish! The flounder fillets are baked, instead of pan-fried, which makes it so much better for you while still being super flavorful!

It’s also readily available frozen in most places, which makes it so easy to have an amazing fish dinner in no time!

❤️ Why I Love This Recipe

  • It’s Quick! My baked flounder only takes 20 minutes from start to finish! That’s perfect for weeknights!
  • It’s a Favorite! Who doesn’t love flaky fish covered in a crunchy, tasty topping? This is a meal anyone will love!
  • It’s so Light! Even with the crunchy Panko topping, my baked flounder is so light and fresh—it’s something you’ll feel great eating!

🥘 Ingredients

My baked flounder fillets are so easy to make! You can find frozen flounder fillets almost everywhere. If you have access to fresh-caught, feel free to use it!

Baked flounder ingredients with labels.
  • Flounder Fillets – Flounder is tender, flaky, and buttery! You should thaw these in your refrigerator or under cold running water if you’re using frozen.
  • Panko Breadcrumbs – Panko breadcrumbs are super crispy Japanese breadcrumbs made from the inside of the bread. They’re very light and perfect for this dish!
  • Parmesan Cheese – I like a good, aged Parmesan that I grate myself for this recipe—but you can use whatever you prefer!
  • Olive Oil – Extra virgin olive oil (EVOO) is the perfect healthy oil to get the breadcrumbs and Parmesan cheese crisp. If you don’t have extra virgin olive oil, you can use any healthy oil you have on hand. You can also use melted butter for extra richness.
  • Salt & Pepper – This is optional but recommended for a little extra seasoning on the fish! You can add according to taste.
  • Lemon Wedges –An optional garnish! This just adds a bright finish to the flounder fillets, and lemon always complements seafood.

If you’d like, you can add a little minced garlic or chopped fresh herbs to the breadcrumb mixture for some added flavor!

Not a fan of Flounder? My delicious crispy topping would work just as well on cod, haddock, or halibut!

🔪 How To Bake Flounder

My baked flounder recipe is so easy to make! It takes just about 20 minutes from start to finish for a delicious fish dinner!

Process photo 3 flounder fillets on baking sheet.
1
Process photo 1 add topping ingredients.
2
Process photo 2 topping ingredients combined.
3
Process photo 4 flounder fillets with topping ready to bake.
4
  1. Prep. Start by preheating your oven to 425°F (218°C) and then cover a baking sheet with parchment paper. If you do not have parchment paper, you can use aluminum foil, lightly brush on some olive oil, or spray with non-stick cooking spray. Then, place 2 pounds of flounder fillets on the prepared baking sheet (that has been pat dry with paper towels).
  2. Make the breadcrumb topping. In a small mixing bowl, combine ½ cup of Panko breadcrumbs, ½ cup of grated Parmesan cheese, and ½ tablespoon of olive oil. Mix until well combined and the olive oil is evenly distributed.
  3. Bake flounder fillets. Sprinkle the Panko mixture generously over the flounder fillets. Then place the baking sheet in the middle of your oven’s center rack and bake at 425°F (218°C) for 15 minutes or until the flounder reaches an internal temperature of 145°F (63°C).
  4. Serve! Remove the flounder fillets from the oven when done, and serve with lemon wedges.

This baked fish makes for such a healthy lunch or dinner! It’s the perfect filling but light meal, so serve it with something equally light—such as my sautéed broccolini or a simple green garden salad! Enjoy!

💭 Angela's Pro Tips & Recipe Notes

  • Achieving Perfect Doneness: Cook the flounder to your liking, but for safety, aim for an internal temperature of 145°F (63°C) as recommended by the USDA. The fish should appear opaque and flaky when done, which is especially important for freshly caught fish.
  • Avoiding Overcooking: Be vigilant not to overcook the flounder. Overcooking can lead to a dry and unpleasant texture. Remove the fish from heat as soon as it reaches the safe internal temperature to retain its moisture and tenderness.
  • Properly Defrosting Frozen Fish: If using frozen flounder, ensure it's thoroughly defrosted before cooking. Defrost in the refrigerator overnight or quickly under cold running water for about 10 minutes. Pat the fillets dry with paper towels to ensure the Panko adheres well and the fish doesn't become soggy.
  • Preparing the Panko Mixture: For a crispy coating, ensure the breadcrumbs are fully moistened with olive oil. The Panko should look slightly wet but not overly saturated. A well-mixed breadcrumb mixture will result in a perfectly crispy crust.

🥡 Storing & Reheating

Since these flounder fillets have a crispy breadcrumb topping, they will not freeze well—but they will keep for a day in your fridge if you have any leftovers! Be sure to place in an airtight container and try not to crowd the container if you have more than one fillet.

Reheating

Do you have an air fryer? If so, reheating this crispy baked flounder in an air fryer is the best way to make it crispy again!

Start by preheating your air fryer to 350°F (175°C). Then place the leftover flounder in the basket and air fry for about 6 minutes or until the flounder is crispy again on top and fully warmed through.

You can also do this in the oven, but it will take longer and might dry out the fish a bit. Preheat the oven to 350°F (175°C) and put the leftover flounder on a prepared baking sheet. Then, bake for about 15 minutes or until the flounder is fully heated through.

Baked flounder tall image with three pieces of the flounder served on black plate.

🐟 Other Great Fish & Seafood

Check out all my seafood recipes. Here are just a few favorites that you're sure to love!

  • Pan Seared Swordfish
  • Broiled Lobster Tails
  • Garlic Butter Shrimp
  • Pan Seared Salmon
  • Air Fryer Shrimp
  • Steamed Clams

❓ Recipe FAQs

Why is my flounder mushy?

Flounder should be tender and flaky—never mushy! If your flounder is mushy, it could either be the flounder you’re purchasing, or it may be somewhat over or under-cooked! I recommend buying good quality flounder fillets and using a thermometer to make sure the internal temperature is where it should be.

Why aren’t my breadcrumbs sticking to the flounder?

The Panko breadcrumbs should stick to the flounder well (especially if you’ve patted the fish dry). If you find the breadcrumbs do not stick as they should—try brushing on a thin coating of mayo before applying the Panko mixture to the fish. The mayo will help keep the fish moist and make sure the breadcrumbs stick well!

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📖 Recipe Card

Closeup of the baked flounder with crispy topping.
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4.98 from 72 reviews

Panko Crusted Baked Flounder

My baked flounder is a fantastic combination of tender flounder fillets and a crispy Panko and Parmesan breadcrumb topping! It's an easy-to-make dinner that you can have in the oven, baked to perfection, and served in 20 minutes!
Author | Angela Latimer
Servings: 4 servings
Calories: 343kcal
Prep 5 minutes minutes
Cooking 15 minutes minutes
Total Time 20 minutes minutes
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Ingredients
 

  • 2 lbs flounder fillets (thawed if from frozen)
  • ½ cup Panko breadcrumbs
  • ½ cup Parmesan cheese (grated)
  • 1 ½ tablespoon olive oil (extra virgin)
  • each, salt & pepper (optional, to taste)
  • lemon wedges (optional - zest half your lemon if desired)

(Note: 2x or 3x only changes the ingredient list)

Help Us Out!If you love a recipe, be sure to come back and share your ratings. This helps future users, and allows me to continue sharing free recipes! Angela

Instructions
 

  • Preheat your oven to 425°F (218°C) and pat the flounder fillets with paper towels to thoroughly dry all surfaces.
  • Place flounder fillets on a baking sheet covered with parchment paper and season with salt and pepper.
  • In a small mixing bowl combine the Panko, Parmesan cheese, and olive oil until the breadcrumbs are slightly moistened. Sprinkle the Panko mixture over the fillets.
  • Bake at 425°F (218°C) for 15 minutes or until the flounder reaches desired doneness.
  • Remove from oven and serve immediately with lemon wedges.

Notes

  • Zest half the lemon if desired, it adds a wonderful tangy flavor to the breadcrumb topping!

Nutrition

Calories: 343kcal (17%) | Carbohydrates: 6g (2%) | Protein: 51g (102%) | Fat: 13g (20%) | Saturated Fat: 4g (25%) | Polyunsaturated Fat: 2g | Monounsaturated Fat: 6g | Cholesterol: 122mg (41%) | Sodium: 373mg (16%) | Potassium: 711mg (20%) | Fiber: 1g (4%) | Sugar: 1g (1%) | Vitamin A: 98IU (2%) | Calcium: 184mg (18%) | Iron: 2mg (11%)
Did you try this recipe? Rate it below!I can’t wait to see your results! Mention @bake_it_with_love or tag #bake_it_with_love!
Course Dinner Recipes, Main Dish, Seafood
Cuisine American
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Comments

    4.98 from 72 votes (63 ratings without comment)

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  1. Lori says

    March 21, 2025 at 1:33 pm

    5 stars
    I love eating flounder now! Thanks !

    Reply
  2. Pam says

    January 17, 2025 at 3:58 pm

    5 stars
    Easy recipe!! It was fast and both my husband and dad love it!! Made no changes. Thank you!!

    Reply
  3. Lori says

    October 06, 2024 at 10:06 am

    5 stars
    I really like this recipe. I enjoy eating flounder now! So crispy and tasty!

    Reply
  4. Lori says

    August 25, 2024 at 3:14 pm

    5 stars
    I love it! I don’t usually like fish but this recipe makes me want it!

    Reply
  5. Lori says

    August 02, 2024 at 1:50 pm

    5 stars
    This recipe makes me want flounder! It comes out crispy and so good!

    Reply
  6. michael says

    August 02, 2022 at 11:04 am

    Always like to Fry flounder, but wanted less of a fuss. I tried this recipe and it came out perfectly. I think the Panko topping would work on a variety of other fish and perhaps baked clams as well with some added spices.

    Thanks for posting the recipe!

    Reply
  7. Victoria says

    June 24, 2022 at 4:05 pm

    5 stars
    Delicious! Crispy, flavorful, whole family loved it! Serve it on greens with cabbage; added mild kimchi on the side to jazz the meal up.

    Reply
  8. Greg says

    February 28, 2022 at 5:08 pm

    4 stars
    Easy to make, but 15 minutes only cooked it about 75%. I added some seasoning salt to the panko, but it was too salty. Next time, I'll just add a little ceyane.

    Reply
    • Angela @ BakeItWithLove.com says

      March 01, 2022 at 7:30 am

      My flounder filets are usually thin, so I always watch carefully when cooking. Sounds like perhaps you had a nice thick filet (lucky you!). Cayenne would be wonderful in the Panko, as would my Cajun seasoning. Enjoy!

      Reply
  9. Victoria says

    January 07, 2022 at 9:15 pm

    4 stars
    Liked it a lot, though I would add more flavoring to the panko-parm mix. Maybe a little spiciness? It was a bit bland. But it was perfectly done and quite delicious.

    Reply
    • Angela @ BakeItWithLove.com says

      January 08, 2022 at 9:27 am

      My husband's favorite addition is a touch of our Cajun seasoning to the seasoning, but otherwise a flavored breadcrumb or Panko breadcrumbs. I just love a hearty amount of fresh lemon zest 🙂

      Reply
  10. Jana says

    November 14, 2021 at 7:25 pm

    5 stars
    I tried this recipe as my husband likes fish. (I do not.) He really liked it and amazingly, so did I. First time ever that I have eaten a whole piece of fish. This says a lot. Hubby said this is a keeper recipe. I agree!

    Reply

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Author bio photo with cake.

Hi there, I'm Angela

I am an avid vintage cookbook collector, cook, baker, and total foodie. I love sharing new, fun, creative recipes and great classic recipes, just like my Grandma used to make! Every recipe on BIWL is tested to ensure that cooks of any experience level can succeed.

Welcome to Bake It With Love. Enjoy!

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