Marinated Tuna with Avocado, Chilli, and Cucumber

Name: Marinated Tuna with Avocado, Chilli, and Cucumber
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: A 12 oz piece of finest-quality tuna fillet; 1 tsp sea salt; Juice of 2 limes; 1 small red onion, peeled and finely chopped; 1-2 green or red chillies, finely chopped (seeds removed or not, as you prefer); 3 plum tomatoes, peeled, cored, and thinly sliced; 1/4 cucumber, peeled and sliced; 1 large avocado, halved, peeled, and sliced; 2-3 tbsp freshly chopped cilantro leaves; 2 tbsp olive oil; Serve with 2/3 cup sour cream

Servings: persons

A 12 oz piece of finest-quality tuna fillet
1 tsp sea salt
Juice of 2 limes
1 small red onion, peeled and finely chopped
1-2 green or red chillies, finely chopped (seeds removed or not, as you prefer)
3 plum tomatoes, peeled, cored, and thinly sliced
1/4 cucumber, peeled and sliced
1 large avocado, halved, peeled, and sliced
2-3 tbsp freshly chopped cilantro leaves
2 tbsp olive oil
Serve with 2/3 cup sour cream

1
Slice the tuna thinly and place in a large shallow serving dish.
2
Sprinkle with salt and cover with the lime juice.
3
Leave to marinate for 40 minutes, turning the fish over once.
4
Lift out the fish (which should now look opaque from being cooked by the lime juice) and put on a plate.
5
Pour the resultant juices into a small bowl.
6
Return the tuna to the dish in a presentable manner.
7
Scatter over the onion and chillies.
8
Arrange the tomatoes, cucumber, and avocado over the top.
9
Sprinkle the cilantro leaves over the surface and finish with the olive oil.
10
Finally, return the collected juices to the dish using a spoon, taking particular care to fully anoint each and every piece of avocado, so preventing any discoloration.
11
Cover and chill for a further 40 minutes or so before serving.
12
Hand round a dish of sour cream at table.

kcal

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Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

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

Coconut cream is a reliable plant-based alternative to dairy cream.

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

My Personal Notes

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How did you like this recipe?

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

You need 11 ingredients. The key ingredients include: A 12 oz piece of finest-quality tuna fillet, 1 tsp sea salt, Juice of 2 limes, 1 small red onion, peeled and finely chopped, and more.

Yes, Marinated Tuna with Avocado, Chilli, and Cucumber falls under the Seafood category and is a great choice for this type of meal.

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

That's it — enjoy your meal!