Oven-Baked Cod with Roasted Heirloom Carrots

There is a quiet magic that happens in the oven when you roast heirloom carrots. As the heat hits their sugars, they transform from raw, earthy roots into something deeply caramelized and tender. I love using a rainbow variety—those deep purples, vibrant yellows, and bright oranges turn a simple sheet pan dinner into a visual delight. When you pair that sweetness with the clean, mild, and incredibly tender nature of wild-caught cod, you have a dish that feels sophisticated yet entirely unpretentious.

I find that many people shy away from fish at home, fearing the smell or the difficulty of cooking it "just right." But white fish is incredibly forgiving. The trick is letting the oven do the heavy lifting while you enjoy the aromas of thyme and garlic wafting through the kitchen. It’s a sensory experience that grounds you, reminding us that healthy food doesn't need to be complex; it just needs respect for the ingredients.

Try to source the freshest cod you can find. If you live far from the coast, a high-quality frozen, wild-caught fillet is often fresher than the "fresh" fish at the counter that has been sitting for days.

• 4 Cod fillets (6 oz each)
• 1 lb Heirloom carrots (look for varying colors), scrubbed and halved lengthwise
• 2 tbsp Extra virgin olive oil
• 1 tbsp Fresh thyme, finely chopped (or 1 tsp dried)
• 1 Large lemon, sliced into thin rounds
• 2 cloves Garlic, minced
• Sea salt and freshly cracked black pepper
• Fresh flat-leaf parsley for garnish

1. Prep your oven: Preheat to 400°F (200°C). A hot oven is the secret to getting a good sear on the vegetables before the fish enters the picture.
2. Roast the roots: On a rimmed baking sheet, toss the carrots with the olive oil, minced garlic, thyme, a generous pinch of sea salt, and black pepper. Spread them in a single layer. Roast for 15 minutes. You’re looking for a slight golden-brown edge and a bit of tenderness.
3. Add the fish: Pat your cod fillets dry with a paper towel—this is crucial for texture. Push the carrots to the sides and lay the fillets in the center of the pan.
4. Season and finish: Place a thin lemon slice over each piece of cod. This infuses the fish with a bright, aromatic citrus essence as it steams gently in its own juices. Return the pan to the oven for another 10–12 minutes.
5. The finish line: The fish is done when it is opaque throughout and pulls apart easily with a fork. Sprinkle with fresh, chopped parsley for a pop of color and freshness.

This dish is surprisingly versatile for meal prep. While the fish is best enjoyed fresh, you can definitely prep ahead. Scrub and chop your carrots the night before and store them in a container with a damp paper towel to keep them crisp.

Storage: Leftovers will keep for up to 2 days in the refrigerator in an airtight container. Because fish can dry out, I recommend reheating it gently in a skillet over low heat with a tiny splash of water or broth, rather than the microwave, to maintain that moist, flaky texture.