Baked Cod with Tomato-Caper Sauce and Roasted Asparagus

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Flaky cod baked with a tangy tomato and caper sauce paired with oven-roasted asparagus spears for a fresh, Whole30-compliant entree. This mediterranean-inspired whole30 (gluten free, dairy free) ready in about 30 minutes blends (6 oz each) cod fillets, cherry tomatoes, halved, capers, rinsed 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 310 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: 20 min Serves 4 Mediterranean cuisine 310 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F. In a bowl, toss 1 lb trimmed asparagus with 1 tbsp olive oil, 1/2 tsp salt, and 1/4 tsp black pepper. Spread on a baking sheet and roast for 15 minutes.
  2. Step 2: Meanwhile, in a medium bowl, mix 1 1/2 cups halved cherry tomatoes, 2 tbsp rinsed capers, 3 minced garlic cloves, 3 tbsp olive oil, 1 tsp lemon zest, 2 tbsp lemon juice, 1/2 tsp salt, and 1/4 tsp black pepper.
  3. Step 3: Place 4 cod fillets in a greased baking dish and spoon the tomato-caper mixture evenly over the fillets.
  4. Step 4: Bake cod with sauce in the oven alongside asparagus for 12-15 minutes, until the fish is opaque and flakes easily with a fork.
  5. Step 5: Remove from oven, garnish with 2 tbsp chopped fresh parsley, and serve the cod with the roasted asparagus.

Equipment for this recipe

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Frequently asked questions

How long does Baked Cod with Tomato-Caper Sauce and Roasted Asparagus take to make?

Total time is about 30 minutes (10 min prep + 20 min cook). A small batch typically covers several meals in the week — store as the recipe directs.

How do I store leftover Baked Cod with Tomato-Caper Sauce and Roasted Asparagus?

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 Baked Cod with Tomato-Caper Sauce 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 Tomato-Caper Sauce 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 Tomato-Caper Sauce and Roasted Asparagus gluten free?

Yes — this recipe is tagged gluten free, dairy 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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