Gordon Ramsay Salmon with Smashed Potatoes (Crispy Potatoes, Juicy Salmon)

Double-roasted baby potatoes for real crunch, salmon that stays moist thanks to tray steam from tomatoes and beans, and a chilled watercress–spinach sauce to balance the heat. Simple—if you follow the timing.

Why This Method Works

• Two-stage potatoes: Roast, smash, roast again for fluffy centers and crackly edges.
• Moisture management: Tomatoes release gentle steam so salmon stays juicy while beans keep their snap.
• Hot vs. cold: A lemony green sauce cools and sharpens after high heat.

Prefer a skillet night? The sear cues are just like pan-fried salmon. For oven timing basics, cross-check with baked salmon.

What You’ll Need (and Why)

• 500 g baby new potatoes: Smaller = faster cook and better smash.
• Low-cal cooking spray: Keeps fat in check so potatoes crisp (light olive oil also works).
• 2 salmon fillets (150–180 g each), skinless/boneless: Thicker pieces roast more predictably.
• 200 g cherry tomatoes, halved; 200 g fine green beans, trimmed: Tomatoes add acidity/steam; beans bring snap—add late.
• Green sauce: Watercress + spinach, crème fraîche, and lemon for a cool, peppery finish.

Buying fish? This quick guide helps avoid overpaying: fresh vs. frozen fish.

How to Make It (Step-by-Step)

1. Roast potatoes (round 1): Heat oven to 220°C / 425°F (fan if you have it). Spread potatoes on a large metal tray (~30×20 cm), mist with spray, salt, and roast 20–25 minutes; shake once.
2. Smash for surface area: Press each potato with a glass bottom or fork—crack, don’t mash—so edges fray and crisp.
3. Add salmon & veg: Season salmon; nestle on the tray with tomatoes (cut-side up) and beans. Light mist of spray; season the veg properly.
4. Roast to finish: 12–15 minutes until beans are tender, tomatoes blister, and salmon hits about 52–54°C / 125–130°F. Rest fish 3–5 minutes.
5. Blend the green sauce: Blitz watercress, spinach, crème fraîche, lemon zest and juice; season and chill. Want a different accent? Try the 2-minute dill sauce.
6. Serve: Pile potatoes and beans, top with salmon, and spoon the sauce over generously.

Chef Moves

• Use a metal tray, not ceramic—better evaporative loss = crisper potatoes (more on pan materials in our cast iron vs. carbon steel vs. stainless breakdown).
• Smash while hot; cold potatoes collapse.
• Zest straight over the blender so the citrus oils land in the sauce.

Prep Ahead & Keep Fresh

Make the sauce up to a day ahead and keep it chilled. Roast components just before serving. For leftover handling, see best way to store salmon and keep sauce separate so it doesn’t thin out.

What People Asks

Can I use frozen salmon?

Yes—thaw fully and pat very dry or it’ll steam and lose color.

Why smash instead of mash?

More ragged surface = more crunch after the second roast.

Vegan sauce swap?

Use a thick plant yogurt or silken tofu with lemon; season assertively.

Other veg that work?

Zucchini rounds and red onion wedges roast well—just don’t overcrowd the tray.

Related Recipes

• Pan-Fried Salmon
• Baked Salmon
• 2-Minute Creamy Dill Sauce
• Honey-Garlic Glaze