Tossed Wild-caught Tuna Niçoise Salad

Tossed Wild-caught Tuna Niçoise Salad

Bring the sunshine to your plates with Mindful Chef x Tossed. Starring responsibly-sourced yellow fin tuna steaks, seared to perfection. Add crunchy green beans, golden roasted potatoes, juicy olives and a tangy lemon & mustard dressing. Top with gooey boiled eggs - et voilà!

High protein 7 plants Low sat fat

Serving size

Cook time: 35 mins
Cuisine: French
Food group: Fish
Allergens: Fish, Mustard, Eggs
Smiling woman in a kitchen holding an open Mindful Chef delivery box filled with fresh vegetables.

Getting hungry?

Find 56 recipes a week just like this one at Mindful Chef, that are all:

Delicious, high quality food - and lots of it
No stodgy refined carbs - no food comas here
Goodness from natural food - full of fibre
Explore this week's menu

Cooking Instructions

The protein cooking time listed in this recipe has been updated.

As of December 2025, we’ve revised cooking times for all our proteins to reflect improved food safety guidance.

Check out the latest recommended times in our Cooking Guidelines.

Before you start

  • Preheat the oven to 240C / fan 220C / gas mark 9
  • Line a baking tray with parchment paper
  • Bring a small saucepan filled with water to a boil
  • Pull out a sieve, a slotted spoon, a medium frying pan, a small bowl & a large mixing bowl

Roast & pickle

  • Quarter the potatoes. Halve the onion, then cut one half into wedges
  • Place the potatoes and onion wedges onto the lined baking tray, drizzle with 1 tsp oil and season with salt. Roast for 15 mins
  • Meanwhile, thinly slice the remaining onion and place into the small bowl with the juice from half the lemon and a pinch of salt. Mix and leave to pickle

Cook the egg

  • Carefully lower the egg into the pan using a spoon
  • Boil for 7 mins, then remove with a slotted spoon and run under cold water

Meanwhile, fry the tuna

  • Heat the medium frying pan with 1 tsp oil on medium-high heat
  • Season the tuna with salt and pepper. Once the pan is hot, add the tuna and cook for 7 mins, per side, until cooked through. Remove and leave to rest

Assemble the salad

  • Halve the tomatoes and olives
  • Trim the green beans and cut into thirds. After 15 mins, add the green beans to the veg tray, and drizzle with 1 tsp oil. Roast for a further 10 mins, until the veg is soft and golden
  • In the large bowl, combine the mustard, remaining lemon juice and 1 tbsp oil. Season with salt and pepper

Plate up

  • Carefully peel and quarter the egg
  • When everything's ready, add the salad leaves, pickled onion, tomatoes, olives, roasted veg to the dressing bowl. Toss to combine
  • Share the salad between bowls. Top with the seared tuna steaks and the egg

Looking for more recipe inspiration?

Subscribe to our newsletter and get delicious seasonal inspiration and recipes, plus 25% off your first 4 boxes with us!

By signing up to our mailing list you agree to the terms of our Privacy Policy.

Mindful Chef

Take a seat at our table.

Food is personal at Mindful Chef. We use cookies and similar technologies to tailor recipes and content to your tastes, just like our delicious weekly menus. We also use this tech to enhance your experience and help our website run smoothly.

You're in charge - accept or reject nonessential cookies, and feel free to change your preferences at any time.

Cookie Policy

Making changes?

Are you sure you want to continue?