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tuna fish cooked with tomatoes

Tuna Steak with Tomato Relish

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 5 from 2 reviews
  • Author: Caroline Phelps
  • Prep Time: 10 minutes
  • Cook Time: 20 minutes
  • Total Time: 30 minutes
  • Yield: 2 1x
  • Category: Seafood
  • Method: Skillet
  • Cuisine: Mediterranean
  • Diet: Gluten Free


This tuna steak recipe couldn’t get any easier! Paired with a sweet and savory quick tomato relish, this is a healthy meal that will please your whole family.


Units Scale
  • 2 pounds tuna steak
  • 3 tablespoons extra virgin olive oil
  • 1 clove garlic, minced
  • 1 pint heirloom or cherry tomatoes, finely chopped
  • 1/2 medium onion, finely chopped
  • 8 leaves fresh basil, roughly chopped
  • 1 teaspoon sugar
  • Salt and pepper to taste
  • Lemon wedges, to serve


  1. In a skillet over medium high heat, add 2 tablespoons of olive oil, garlic and onions, and cook for 3-4 minutes, until onions are translucent.
  2. Add the tomatoes and sugar, and cook for 5 minutes, or until the mixture is almost like a sauce. Turn off the heat, add basil and season with salt, and pepper. Set aside.
  3. Place a separate skillet over medium high heat. Season the tuna with salt and pepper on both sides.
  4. When the skillet is hot, add the remaining 1 tablespoon olive oil. Add the tuna steaks and cook for 2 to 3 minutes on each side or medium well done.
  5. Serve with the tomato relish.


Storage: Save the tuna steaks and tomato relish separately if you can. Refrigerate for up to 2 days.


  • Serving Size: 1 serving
  • Calories: 714
  • Sugar: 7.2g
  • Sodium: 213mg
  • Fat: 23.6g
  • Saturated Fat: 3.8g
  • Unsaturated Fat: 3.1g
  • Trans Fat: 0.1g
  • Carbohydrates: 11g
  • Fiber: 2.3g
  • Protein: 112.6g
  • Cholesterol: 177.2mg
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