Blackened Mahi Mahi Fish Sandwich Recipe

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  • Prep Time

    10 mins

  • Cook Time

    10 mins

  • Total Time

    20 mins

  • Servings

    4

  • Calories

    587 kcal

  • Course

    Main Course

  • Cuisine

    American, Cajun

Blackened Mahi Mahi Fish Sandwich Recipe

Spice up your dinner with this Mahi Mahi Fish Sandwich! Cajun-inspired vibes, homemade fresh dill tartar sauce, and a bun full of yum—done in 20 mins!

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Ingredients

Servings

Sandwich

  • 4 (6-ounce) mahi mahi fish filets
  • 2-3 tablespoons olive oil
  • 1 recipe Blackened Seasoning Spice Rub (See recipe below)
  • 4 hamburger buns
  • lettuce
  • tomato sliced
  • red onion sliced
  • 1 recipe tartar sauce (See Recipe below)
  • For serving: fries (chips or coleslaw, lemon wedges, pickle spears)

Spice Rub:

  • 2 teaspoons smoked paprika
  • 1 teaspoon chili powder
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon onion powder
  • 1/2 teaspoon cumin
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper

Tartar sauce:

  • 1 cup mayo
  • 2 tablespoon fresh dill chopped
  • 2 tablespoons dill relish
  • 2 teaspoons shredded onion
  • 1 teaspoon lemon juice
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Instructions

  1. Make the Spice Rub: In a small bowl, mix the smoked paprika, chili powder, garlic powder, onion powder, cumin, salt, and black pepper.
  2. Season the Fish: Coat both sides of each fillet evenly with the spice mixture, pressing lightly so it adheres.
  3. Heat the Pan: In a large skillet or cast-iron pan, heat 2-3 tablespoons of olive oil over medium heat until shimmering.
  4. Cook the Fish: Add the fillets to the pan and cook for about 4 minutes on the first side, then flip and cook for another 3 minutes, or until the fish is opaque and flakes easily with a fork. Remove from heat and let it rest for a minute.
  5. Prepare the Tartar Sauce: In a small bowl, mix the mayo, fresh dill, dill relish, shredded onion, and lemon juice. Stir well and refrigerate until ready to use.
  6. Assemble the Sandwich: Toast the hamburger buns if desired. Add the lettuce, tomato slices, red onion and then the cooked Mahi Mahi fillet, to the bun. Spread a generous amount of tartar sauce on the fish. Top with the other half of the bun.
  7. Serve: Enjoy with fries or chips, coleslaw, lemon wedges, and pickle spears on the side.

Notes

  • Store cooked mahi mahi in an airtight container in the fridge for up to 2 days. Reheat in an air fryer or oven to keep it crispy, then assemble fresh.
  • Yes. Wrap the filets tightly in plastic wrap and place in a freezer-safe, airtight container or bag for up to 3 months

Nutrition Information

Show Details
Calories 587kcal (29%) Carbohydrates 27g (9%) Protein 6g (12%) Fat 51g (78%) Saturated Fat 8g (40%) Polyunsaturated Fat 27g Monounsaturated Fat 15g Trans Fat 0.1g Cholesterol 24mg (8%) Sodium 954mg (40%) Potassium 162mg (5%) Fiber 2g (8%) Sugar 5g (10%) Vitamin A 712IU (14%) Vitamin C 3mg (3%) Calcium 82mg (8%) Iron 2mg (11%)

Nutrition Facts

Serving: 4Serving

Amount Per Serving

Calories 587 kcal

% Daily Value*

Calories 587kcal 29%
Carbohydrates 27g 9%
Protein 6g 12%
Fat 51g 78%
Saturated Fat 8g 40%
Polyunsaturated Fat 27g 159%
Monounsaturated Fat 15g 75%
Trans Fat 0.1g 5%
Cholesterol 24mg 8%
Sodium 954mg 40%
Potassium 162mg 3%
Fiber 2g 8%
Sugar 5g 10%
Vitamin A 712IU 14%
Vitamin C 3mg 3%
Calcium 82mg 8%
Iron 2mg 11%

* Percent Daily Values are based on a 2,000 calorie diet.

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