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 Tuna Fillets?

You need 10 ingredients. The key ingredients include: olive oil to taste, 2 onions medium, slices, 4 garlic cloves slices, 1/2 red pepper cut in strips, and more.

Is Tuna Fillets suitable as seafood?

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

How do I store leftover Tuna Fillets?

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

Tuna Fillets Recipe

Name: Tuna Fillets
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: olive oil to taste; 2 onions medium, slices; 4 garlic cloves slices; 1/2 red pepper cut in strips; 3 sprigs coriander; 6 tuna fillets; salt to taste; lemon juice to taste; 2 tablespoons tomato paste; french fries

Try this homemade Tuna Fillets recipe the whole family will love. Made with olive oil, onions, garlic and red pepper. Easy step-by-step instructions inc…

This Tuna Fillets relies on simple, everyday ingredients such as olive oil to taste, onions medium, slices, garlic cloves slices and red pepper cut in strips. It comes together quickly and makes 4 servings, at about 348 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

Feel free to swap in similar ingredients you already have on hand and adjust seasoning to taste.

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

My Personal Notes

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Tuna Fillets

Tips for the best results

Variations & substitutions

My Personal Notes

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Frequently Asked Questions