Authentic Niçoise Salad with Pan-Seared Tuna

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A true representation of the French Mediterranean classic, featuring perfectly seared tuna, fresh vegetables, and a vibrant lemon-Dijon vinaigrette that honors its Provençal roots. This mediterranean-inspired salads (mediterranean) ready in about 30 minutes pairs fresh tuna steak, extra-virgin olive oil, boiled eggs for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 420 calories and feeds 2, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

★ 4.4 (10 ratings) Prep: 20 min Cook: 10 min Serves 2 Mediterranean cuisine 420 cal/serving
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Ingredients

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Instructions

  1. Step 1: Pat tuna steak dry with paper towels, season both sides with 1/4 tsp sea salt and 1/8 tsp black pepper. Heat 1 tbsp olive oil in a skillet over high heat until shimmering, then sear tuna for 2 minutes per side until medium-rare and edges are caramelized.
  2. Step 2: Blanch haricots verts in boiling salted water for 2 minutes until bright green and crisp-tender, then shock in ice water to stop cooking.
  3. Step 3: Whisk lemon zest, lemon juice, 1 tsp Dijon mustard, 1 tbsp apple cider vinegar, 1/4 tsp sea salt, and 1/8 tsp black pepper in a small bowl until emulsified.
  4. Step 4: Arrange haricots verts, red onion, boiled eggs, and Niçoise olives on a plate, top with seared tuna, and drizzle with vinaigrette just before serving.

Frequently asked questions

How long does Authentic Niçoise Salad with Pan-Seared Tuna take to make?

Total time is about 30 minutes (20 min prep + 10 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Authentic Niçoise Salad with Pan-Seared Tuna?

Refrigerate in a covered airtight container for up to 3–4 days (FDA FoodKeeper guideline for cooked fish). Store any fresh salsa or citrus-based garnish in a separate container — it keeps for up to 2 days. Freeze cooked fish (without fresh garnishes) for up to 3 months; thaw overnight in the fridge and reheat gently at 275°F until just warmed through to preserve texture.

Can I substitute ingredients in Authentic Niçoise Salad with Pan-Seared Tuna?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Authentic Niçoise Salad with Pan-Seared Tuna for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Authentic Niçoise Salad with Pan-Seared Tuna?

Mediterranean salads like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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