Pan-Seared Salmon with Lemon-Caper Butter Sauce and Wilted Spinach

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

Crisp-skinned salmon fillets topped with a bright lemon-caper butter sauce, served with tender wilted spinach for a light and flavorful meal. This french-inspired seafood ready in about 25 minutes blends divided unsalted butter, freshly squeezed lemon juice, drained capers into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 420 calories and feeds 4, so a small batch covers several meals across the week without taking over the fridge. 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.

Prep: 10 min Cook: 15 min Serves 4 French cuisine 420 cal/serving
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Ingredients

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Instructions

  1. Step 1: Pat dry 4 salmon fillets with skin on and season both sides with 1 tsp salt and 1/2 tsp black pepper.
  2. Step 2: Heat 1 tbsp olive oil in a large skillet over medium-high heat until shimmering. Place the salmon fillets skin-side down and cook for 5-6 minutes without moving until the skin is crisp and golden.
  3. Step 3: Flip the fillets carefully and cook for an additional 3-4 minutes until the salmon is opaque and flakes easily with a fork. Transfer salmon to a plate and tent loosely with foil.
  4. Step 4: In the same skillet, reduce heat to medium and melt 2 tbsp unsalted butter. Add 2 minced garlic cloves and sauté for 30 seconds until fragrant.
  5. Step 5: Stir in 2 tbsp drained capers and 2 tbsp freshly squeezed lemon juice, cooking for 1 minute until the sauce thickens slightly.
  6. Step 6: Remove skillet from heat and whisk in remaining 2 tbsp unsalted butter and 2 tbsp chopped fresh parsley until the sauce is smooth and glossy.
  7. Step 7: In a separate pan, melt 1 tbsp butter over medium heat. Add 6 cups fresh spinach, 1/2 tsp salt, 1/2 tsp black pepper, and 2 tbsp water. Sauté for 2-3 minutes until spinach is wilted but still vibrant.
  8. Step 8: Serve the salmon topped with lemon-caper butter sauce alongside the wilted spinach.

Frequently asked questions

How long does Pan-Seared Salmon with Lemon-Caper Butter Sauce and Wilted Spinach take to make?

Total time is about 25 minutes (10 min prep + 15 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Pan-Seared Salmon with Lemon-Caper Butter Sauce and Wilted Spinach?

Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.

Can I substitute ingredients in Pan-Seared Salmon with Lemon-Caper Butter Sauce and Wilted Spinach?

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 Pan-Seared Salmon with Lemon-Caper Butter Sauce and Wilted Spinach for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). 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 Pan-Seared Salmon with Lemon-Caper Butter Sauce and Wilted Spinach?

French seafood 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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