How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Mediterranean Tuna / Swordfish?

You need 11 ingredients. The key ingredients include: 6 tuna steaks (or swordfish), ½ cup olive oil, ½ cup boiling water, 2 lemons, juiced, and more.

Is Mediterranean Tuna / Swordfish suitable as seafood?

Yes, Mediterranean Tuna / Swordfish falls under the Seafood category and is a great choice for this type of meal.

How do I store leftover Mediterranean Tuna / Swordfish?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Mediterranean Tuna / Swordfish Recipe

Name: Mediterranean Tuna / Swordfish
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 6 tuna steaks (or swordfish); ½ cup olive oil; ½ cup boiling water; 2 lemons, juiced; 1 tablespoon balsamic vinegar; 1 tablespoon brown sugar; 2 teaspoons crushed garlic; ¼ cup sun-dried tomato; 2 teaspoons dried basil; 3 teaspoons grainy mustard; salt and pepper

Try this homemade Mediterranean Tuna / Swordfish recipe the whole family will love. Made with tuna, olive oil, boiling water and lemons. Easy step-by-st…

This Mediterranean Tuna / Swordfish relies on simple, everyday ingredients such as tuna steaks (or swordfish), olive oil, boiling water and lemons, juiced. It comes together quickly and makes 4 servings, at about 976 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Seafood

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Mediterranean Tuna / Swordfish

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions