Blackened Mahi Mahi Fish Burgers

  • Author: Krista
  • Prep Time: 5 mins
  • Cook Time: 15 mins
  • Total Time: 20 mins
  • Yield: 4 burgers 1x
  • Category: Burgers, Sandwiches, Seafood, Grilling



Blackened Mahi Mahi Fish Burger:

  • 4 4-5 oz. filets Mahi Mahi, skin removed
  • 1 tablespoon cajun seasoning blend
  • 1/2 teaspoon garlic powder

Piquillo Pepper Aioli:

  • 2 roasted piquillo peppers
  • 1/4 cup mayo
  • 1/4 garlic powder
  • 2 teaspoons fresh lime juice
  • dash of hot sauce
  • pinch of salt


  • 4 thick slices of fresh pineapple
  • 8 leafs of green leaf lettuce
  • 4 whole wheat buns
  • pickled onions {optional}


  1. Heat grill to medium high heat.
  2. To a food processor add piquillo peppers, mayo, garlic powder, dash of hot sauce, fresh lime juice, salt. Set aside.
  3. To a small bowl add cajun season and garlic powder, mix and set aside.
  4. Pat Mahi Mahi filets dry.
  5. Season both sides of Mahi Mahi with cajun seasoning mix.
  6. Spray the grill grates with PAM cooking spray or rub down with olive oil. Place pineapple and mahi mahi on the grill. Grill each side of the pineapple for 4-5 minutes while grilling each side of the mahi mahi for 3-4 minutes. (if you are trying to flip the fish and it sticks, let it sit another minute before flipping) Remove from grill and let cool.
  7. While those are cooling, through the buns on the grill, inside part down first. Grill for 1-2 minutes. Remove.
  8. Assemble the Burgers: Bottom bun, 2 leaves of lettuce, mahi mahi, pineapple {optionalpickled onions}, spread aioli on top bun and serve!