Baked Lemon-Rosemary Cod with Garlic Roasted Potatoes

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

Tender cod fillets baked with fresh lemon and rosemary served alongside golden garlic roasted potatoes. This mediterranean-inspired seafood ready in about 50 minutes pairs (6 oz each) cod fillets, lemon zest, lemon juice for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 350 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: 40 min Serves 4 Mediterranean cuisine 350 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 400°F. In a large bowl, toss 1 lb halved baby potatoes with 2 tbsp olive oil, 2 minced garlic cloves, 1/2 tsp salt, and 1/4 tsp black pepper. Spread on a baking sheet and roast for 25 minutes until golden and tender.
  2. Step 2: Meanwhile, in a small bowl, mix 2 tbsp olive oil, 1 tsp lemon zest, 2 tbsp lemon juice, 2 tsp chopped fresh rosemary, 2 minced garlic cloves, 1/2 tsp salt, and 1/4 tsp black pepper.
  3. Step 3: Place 4 cod fillets on a separate baking tray lined with parchment paper. Brush the lemon-rosemary mixture evenly over each fillet.
  4. Step 4: After potatoes have roasted 25 minutes, place the cod fillets in the oven and bake both trays for an additional 12-15 minutes, or until cod is opaque and flakes easily with a fork.
  5. Step 5: Remove from oven, sprinkle roasted potatoes and cod with 2 tbsp chopped fresh parsley, and serve warm.

Equipment for this recipe

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Frequently asked questions

How long does Baked Lemon-Rosemary Cod with Garlic Roasted Potatoes take to make?

Total time is about 50 minutes (10 min prep + 40 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 Lemon-Rosemary Cod with Garlic Roasted Potatoes?

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 Lemon-Rosemary Cod with Garlic Roasted Potatoes?

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 Lemon-Rosemary Cod with Garlic Roasted Potatoes 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 Baked Lemon-Rosemary Cod with Garlic Roasted Potatoes?

Mediterranean 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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