A bright and colorful medley of bell peppers, onions, tomatoes, and olives lend a flavorful twist to a simple tuna steak. Paleo and keto-friendly.

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  • Preparation Time

    10 minutes

  • Cooking Time

    30 minutes

  • Difficulty Rating

    1

  • Serves

    4
By TrimDownClub
Total Shares 0

Ingredients

  1. 1 Tbsp. / 15 ml olive oil, divided
  2. 1 small red onion, sliced
  3. 2 cloves garlic, minced
  4. 1 red bell pepper, chopped
  5. 1 yellow bell pepper, chopped
  6. 2 tomatoes, chopped
  7. ¼ cup / 60 ml water
  8. 2 Tbsp. / 30 ml dry red wine
  9. 2 Tbsp. / 20 gm black olives, chopped
  10. Salt or substitute to taste (optional)
  11. 4 slices tuna steak, 2 oz. / 55 gm each
  12. Chopped green / spring onions (scallions) for garnish

Directions

  1. Preheat the oven to 375°F / 190°C.
  2. In a large saucepan, heat 2 teaspoons / 10 ml oil over medium heat.
  3. Stir in the red onions, garlic, and peppers; sauté for 2-3 minutes until softened.
  4. Stir in the tomatoes, wine, and water, and bring to a rolling boil.
  5. Cook uncovered over medium-high heat for about 10 minutes, stirring constantly until a thick consistency is attained.
  6. Add the olives; season with salt or substitute (if desired).
  7. Brush the remaining teaspoon of olive oil on both sides of the steaks and season lightly with salt.
  8. Heat an ovenproof skillet over high heat. Sear the steaks for 2 minutes per side.
  9. Put the pan in the preheated oven and bake for a little over 10 minutes.
  10. Transfer the tuna to individual plates and spoon the tomato mix on top.
  11. Garnish with chopped green onions.
Serving Size: 6 oz. / 170 gm Exchanges per Serving: 2 Protein, 1 Veg

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Comments 11

  3. Ossie-Sharon

    Hi, hornford. This recipe is designed for a more solid type of tuna, but you can always try it with canned tuna – if you get the type in oil, be sure to drain and rinse it so that the intense flavor does not overwhelm the seasonings here.

  7. lucibme

    This was delish!!! Few adjustments/changes/additions: marinated tuna steaks in lemon juice and capers about an hour. Did NOT bake in oven 2 mins each side in sizzling hot skillet. Used white wine no water out of opened red wine so splashed in white instead. Used unsalted butter instead of olive oil to cook veggies. Hubby does not like fish he smacked his lips and said, “good job, really tasty” Kudos to us all ;o)))

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