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Home » Gluten-Free » Oven Baked Mahi Mahi

Oven Baked Mahi Mahi

LAST UPDATED: February 15, 2021 • FIRST PUBLISHED: March 20, 2019 • 6 Comments

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Fresh Mahi Mahi fillets engulfed in a butter lemon sauce – OMGosh this Oven Baked Mahi Mahi is so.dang.delicious! Not to mention it’s a quick and easy gluten-free dinner that cooks in under 30 minutes. In fact, many of our Mahi Mahi recipes can be fixed in under 30 minutes – winning! Say goodbye to frozen fish sticks and hello to fresh oven baked Mahi Mahi.

a sheet pan covered in parchment paper with four Mahi Mahi fillets, melted butter, slices of lemon, and a basting brush

Easy Baked Mahi Mahi

If you’re tired of the same old frozen fish sticks and are ready to up your seafood dinner game, then try your hand at this oven baked Mahi Mahi. Mahi Mahi is also a great fish to cook with because it’s easy to work with, bakes quickly, and has a super mild flavor profile.

Ingredients needed

  • 4 Mahi Mahi fillets
  • 1/8 tsp. salt
  • 1/8 tsp. pepper
  • 3 Tbsp. unsalted butter
  • 1/4 tsp. minced garlic
  • 3 tsp. lemon juice
  • 1 lemon

How to make Oven Baked Mahi Mahi

Preheat oven to 425 degrees. F. Line a baking sheet with parchment paper, then spray with cooking spray or brush with olive oil. Then add the Mahi Mahi fillets to the baking sheet.

a baking sheet lined with parchment paper with four raw Mahi Mahi fillets and lemon slices

Melt the butter, then add in the minced garlic and lemon juice – store to combine. Brush the lemon butter mixture over the raw Mahi Mahi fillets. Slice one lemon into thin slices, remove any seeds, and lay on top of the fillets.

Cooking Mahi Mahi just got easy!

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    a woman using a basting brush to baste Mahi Mahi fillets with melted lemon butter

    Place into the oven and bake for 15-20 minutes or until the fillets flake easily and/or reach an internal temperature of 137 degrees F. Remove from oven and brush the melted lemon butter from the pan over the fillets once again. Serve immediately.

    a sheet pan covered in parchment paper with four Mahi Mahi fillets, melted butter, slices of lemon, and a basting brush

    Recipe FAQs

    What temperature should Mahi Mahi be cooked to?

    A quick way to test Mahi Mahi for doneness is to use a fork and see if it flakes easily. But, I can remember when I first started cooking fresh fish I did the fork test and still wasn’t sure if it was done. I wanted a little more piece of mind. If you’re like me, then checking the temperature with a meat thermometer is the way to go. Mahi Mahi should be cooked to around 137 degrees F. Be sure as to not overcook it – as it will dry out quickly.

    Is Mahi Mahi healthy?

    We get this question a lot – and the answer is really up to you and how you define healthy. Mahi Mahi is an excellent source of protein, vitamin B12, Niacin while also being low in total fat.

    What is the flavor of Mahi Mahi?

    Mahi Mahi has a very mild, neutral flavor profile which is why it’s a family favorite. It’s very similar to tilapia or cod.

    Can I cook Mahi Mahi frozen?

    Yes, you can cook your Mahi Mahi fillets frozen; however, I would recommend thawing first. To safely thaw the fish, place in the refrigerator the night before and let it gradually thaw overnight.

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    a Mahi Mahi fillet cut into with a fork

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    • When baking Mahi Mahi in the oven, I like to line my baking sheet with unbleached parchment paper or a silicone baking mat.
    • I recommend having a meat thermometer on hand. I didn’t have one for years which resulted in lots of overcooked meals! This way you can easily test your Mahi Mahi fillets to make sure they’ve reached the correct temperature.

    Make it a meal with the addition of these recipes!

    • Sautéed Green Beans & Mushrooms – an easy vegetable side dish
    • Gluten-free Peach Galette – what’s dinner without a delicious dessert??
    • Blackberry Summer Salad – A fresh summer salad with a light homemade vinaigrette dressing

    Enjoy these other Mahi Mahi recipes!

    • Air Fryer Lemon Dill Mahi Mahi
    • Paleo + Whole30 Mahi Mahi with Chili Lime Butter
    • Parmesan Crusted Baked Mahi Mahi

    Oven Baked Mahi Mahi

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    a sheet pan covered in parchment paper with four Mahi Mahi fillets, melted butter, slices of lemon, and a basting brush

    Oven Baked Mahi Mahi


    • Author: Jennifer
    • Prep Time: 5
    • Cook Time: 20
    • Total Time: 25 minutes
    • Yield: 4 1x
    Print Recipe
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    Description

    An easy 30-minute gluten-free dinner with this oven baked Mahi Mahi roasted with butter and lemon juice.


    Ingredients

    Scale
    • 4 Mahi Mahi fillets
    • 1/8 tsp. salt
    • 1/8 tsp. pepper
    • 3 Tbsp. unsalted butter
    • 1/4 tsp. minced garlic
    • 3 tsp. lemon juice
    • 1 lemon

    Instructions

    1. Preheat oven to 425 degrees F.
    2. Line a baking sheet with parchment paper, then grease the paper with cooking spray or brush with olive oil.
    3. Place the thawed Mahi Mahi fillets onto the parchment paper. Season with salt and pepper.
    4. Melt the butter, then add in the minced garlic and lemon juice – stir to combine.
    5. Using a basting brush, brush the lemon butter mixture over the Mahi Mahi fillets.
    6. Slice one lemon into thin slices, remove any seeds and place onto the fillets.
    7. Bake for 20 minutes or until the fillets are flaky and reach an internal temperature of 137 degrees F.
    8. Remove from oven. Using the basting brush, brush the melted lemon butter from the pan over the fillets once again. Serve immediately.

    Notes

    • Be sure to thaw the Mahi Mahi fillets prior to baking. If you forget to thaw overnight, you can place the fillets into a resealable bag and place the bag into a bowl of cold water to thaw.
    • Nutritional Disclaimer
    • Category: Dinner
    • Cuisine: American

    Keywords: Mahi Mahi, gluten-free

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    Jennifer

    Jennifer is the recipe developer and food photographer behind Wanderlust and Wellness since 2016. She creates easy, approachable gluten-free recipes for the everyday home cook; because cooking gluten-free doesn’t mean food has to be complicated or tasteless.

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    Comments

    1. Frank S

      September 10, 2021 at 10:03 am

      3rd time using this recipe I love it.Also used it with tilapia fillets.I also sprinkle a little grated parmesan cheese.just need to use a trusty instant thermometer about half way through so its not over cooked.

      Reply
    2. Tdream

      May 15, 2020 at 7:03 pm

      The fillets finished early. I think mine were small. 137° and flakes with a fork after 12 minutes at 425° gas stove. No butter or lemon though.

      Reply
      • Jennifer

        May 27, 2020 at 8:19 am

        Thank you for the feedback. Yes, depending on the size of the fillets they could cook faster. I’ll add this note to the recipe.

        Reply
    3. Tdream

      May 15, 2020 at 6:42 pm

      Trying this recipe without butter or lemon. I’m allergic to dairy and my boyfriend has a strong aversion to lemon (can’t be at the same table with it). Using olive oil in the place of the butter. 🤞🏻

      Reply

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