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Cajun Tilapia + Lemon Tarragon Tartar Sauce

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The flavorful combination of my homemade Cajun spice blend and this homemade lemon tarragon tartar sauce is out of this world. The fish is melt-in-your-mouth tender, light and a smidgen spicy while the tartar sauce cools it down with its bright and fresh flavors. Are you sold on this or what??
Course Mains & Entrees
Cuisine American
Keyword broiled, cajun, easy, one pan, seafood, tilapia
Prep Time 15 minutes
Cook Time 10 minutes
Additional Time 5 minutes
Total Time 30 minutes
Servings 4 servings
Calories 473
Author Laurie McNamara



  • 1/2 cup mayonnaise homemade or store-bought
  • 1/4 cup finely diced dill pickle
  • 1 tablespoon finely minced shallot
  • 1/2 teaspoon grated lemon zest
  • 1 teaspoon minced fresh tarragon
  • 1 tablespoon minced fresh parsley
  • kosher salt to taste
  • freshly ground black pepper


  • olive oil spray
  • 3 tablespoons extra light olive oil or avocado oil, divided
  • 1 lemon juiced
  • 1 tablespoon cornstarch
  • 1 teaspoon paprika
  • 3/4 teaspoon garlic powder
  • 3/4 teaspoon onion powder
  • 3/4 teaspoon dried oregano
  • 3/4 teaspoon dried thyme
  • 3/4 teaspoon kosher salt
  • 1/2 teaspoon ground black pepper
  • 1/4 teaspoon cayenne
  • 4 fresh tilapia filets



  • In a bowl combine mayo, pickle, shallot, lemon zest, tarragon and parsley. Stir, taste and season with salt and pepper before covering with plastic wrap and refrigerating until ready to serve.


  • Pull the tilapia out of the fridge to bring up to room temperature about 20 minutes prior to cooking.
  • Prehate oven to broil and line a large, rimmed sheet pan with aluminum foil. Lightly spray the foil with olive oil spray.
  • In a shallow dish combine: oil, lemon juice, cornstarch, paprika, garlic powder, onion powder, oregano, thyme, salt, pepper and cayenne. Whisk to combine.
  • Dip the tilapia filets into the Cajun mixture. Use your fingers to coat each filet evenly. Place fish, bottom-side facing up, onto prepared pan. Broil the tilapia for 5 minutes before carefully flipping and broiling for 4 more minutes or until fish is cooked through and flakes easily.
  • Serve with Lemon Tarragon Tartar Sauce and forks.


Serving: 1g | Calories: 473kcal | Carbohydrates: 7g | Protein: 35g | Fat: 35g | Saturated Fat: 6g | Polyunsaturated Fat: 14g | Monounsaturated Fat: 13g | Trans Fat: 1g | Cholesterol: 97mg | Sodium: 783mg | Potassium: 619mg | Fiber: 2g | Sugar: 2g | Vitamin A: 251IU | Vitamin C: 18mg | Calcium: 52mg | Iron: 2mg