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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


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


  • 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


  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.


  • 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