Baked Cod with Lemon-Caper Olive Tapenade and Roasted Asparagus

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

Delicate baked cod fillets topped with a tangy lemon-caper olive tapenade served alongside tender roasted asparagus for a bright and healthy Whole30 meal. This mediterranean-inspired whole30 (gluten free) ready in about 30 minutes pairs (6 oz each) cod fillets, divided olive oil, pitted and chopped green olives for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 310 calories and feeds 4, 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.

Prep: 10 min Cook: 20 min Serves 4 Mediterranean cuisine 310 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 400°F. Arrange 1 lb trimmed asparagus on a baking sheet. Drizzle with 2 tbsp olive oil, 1/2 tsp sea salt, and 1/4 tsp black pepper. Toss to coat evenly and roast for 15 minutes until tender.
  2. Step 2: Meanwhile, in a small bowl, mix 1/3 cup chopped green olives, 2 tbsp chopped capers, 1 tsp lemon zest, 1 tbsp lemon juice, 1 minced garlic clove, 2 tbsp chopped fresh parsley, and 2 tbsp olive oil until combined.
  3. Step 3: Place 4 cod fillets (6 oz each) in a lightly oiled baking dish. Brush each fillet with 1 tbsp olive oil and season with 1/2 tsp sea salt and 1/4 tsp black pepper.
  4. Step 4: Spoon the lemon-caper olive tapenade evenly over each cod fillet.
  5. Step 5: Bake the cod fillets in the oven alongside the asparagus for 12-15 minutes until the fish flakes easily with a fork.
  6. Step 6: Serve the baked cod topped with tapenade with the roasted asparagus for a fresh, Whole30-approved seafood dinner.

Frequently asked questions

How long does Baked Cod with Lemon-Caper Olive Tapenade and Roasted Asparagus take to make?

Total time is about 30 minutes (10 min prep + 20 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 Olive Tapenade and Roasted Asparagus?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep (6 oz each) cod fillets from drying out.

Can I substitute ingredients in Baked Cod with Lemon-Caper Olive Tapenade and Roasted 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 Olive Tapenade and Roasted 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 Olive Tapenade and Roasted 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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