Baked Cod with Tomato-Olive Mediterranean Relish
Mild cod fillets baked to flaky perfection topped with a vibrant tomato and olive relish bursting with Mediterranean flavors. This mediterranean-inspired seafood (mediterranean) ready in about 28 minutes pairs cod fillets, cherry tomatoes, halved, kalamata olives, pitted and chopped for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 210 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.
Ingredients
- 4 pieces (5 oz each) cod fillets
- 1 cup cherry tomatoes, halved
- 1/2 cup kalamata olives, pitted and chopped
- 1/4 cup red onion, finely diced
- 3 tbsp olive oil
- 1 tbsp red wine vinegar
- 1 tsp dried oregano
- 3/4 tsp salt
- 1/2 tsp black pepper
- 2 tbsp fresh basil leaves, chopped
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Equipment for this recipe
Top-rated tools to make this recipe successfully.
Instructions
- Step 1: Preheat oven to 375°F and line a baking dish with parchment paper. Place 4 cod fillets in the dish and season with 1/2 tsp salt and 1/4 tsp black pepper.
- Step 2: In a medium bowl, combine 1 cup halved cherry tomatoes, 1/2 cup chopped kalamata olives, 1/4 cup finely diced red onion, 3 tbsp olive oil, 1 tbsp red wine vinegar, 1 tsp dried oregano, and 1/4 tsp salt. Stir gently until mixed.
- Step 3: Spoon the tomato-olive mixture evenly over the cod fillets, spreading it to cover the surface.
- Step 4: Bake for 15-18 minutes until the fish flakes easily with a fork and the topping is slightly softened.
- Step 5: Remove from oven and sprinkle 2 tbsp chopped fresh basil leaves over the top before serving.
Frequently asked questions
How long does Baked Cod with Tomato-Olive Mediterranean Relish take to make?
Total time is about 28 minutes (10 min prep + 18 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 Tomato-Olive Mediterranean Relish?
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 Tomato-Olive Mediterranean Relish?
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-Olive Mediterranean Relish 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 Cod with Tomato-Olive Mediterranean Relish?
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.
