Baked Cod with Lemon-Caper Dressing and Asparagus

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

Delicate cod fillets baked tender and topped with a bright lemon-caper dressing, served alongside roasted asparagus for a fresh Whole30 seafood dinner. This seafood recipe (whole30, gluten free), ready in about 25 minutes, pairs cod fillets, asparagus spears, extra virgin olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 280 calories and feeds 4, so it slots cleanly into a Whole30 week and pairs well with roasted sweet potato or a simple olive-oil salad. 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 4 280 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 400°F. Place 1 lb trimmed asparagus on a baking sheet and toss with 2 tbsp extra virgin olive oil, 3/4 tsp sea salt, and 1/2 tsp black pepper. Roast asparagus for 12 minutes until tender-crisp.
  2. Step 2: Meanwhile, place 4 cod fillets in a lightly oiled baking dish. Drizzle with remaining 2 tbsp olive oil and season with 3/4 tsp sea salt and 1/2 tsp black pepper.
  3. Step 3: Bake cod for 12-15 minutes until fish flakes easily with a fork and appears opaque.
  4. Step 4: While fish bakes, whisk together 3 tbsp fresh lemon juice, 2 tbsp chopped capers, 2 minced garlic cloves, and 1/4 cup chopped fresh parsley in a small bowl.
  5. Step 5: Remove cod from oven and spoon lemon-caper dressing evenly over each fillet.
  6. Step 6: Serve cod alongside roasted asparagus immediately.

Frequently asked questions

How long does Baked Cod with Lemon-Caper Dressing and Asparagus take to make?

Total time is about 25 minutes (10 min prep + 15 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 Baked Cod with Lemon-Caper Dressing and Asparagus?

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 Baked Cod with Lemon-Caper Dressing and Asparagus?

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 Baked Cod with Lemon-Caper Dressing and Asparagus 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.

Is Baked Cod with Lemon-Caper Dressing and Asparagus whole30?

Yes — this recipe is tagged whole30, gluten free, paleo based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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