Roasted Cod with Root Vegetables

There is something inherently restorative about a sheet-pan dinner. When I come home after a long day in the kitchen, I crave simplicity—but I refuse to sacrifice flavor. This dish hits that sweet spot perfectly. The aroma of roasting carrots and parsnips fills the kitchen with a cozy, caramelized sweetness, while the cod, protected by a whisper of lemon, stays incredibly moist and succulent.

Cooking at home is about more than just checking boxes on a nutrition plan. It is about the rhythm of chopping, the sound of the vegetables hitting the hot pan, and that satisfying sizzle as the fish enters the oven. When you roast these specific root vegetables, their natural sugars concentrate, creating a texture that perfectly complements the delicate, mild nature of white fish.

• 4 Atlantic cod fillets (6oz each), sustainably sourced if possible
• 3 large carrots, peeled and sliced into uniform rounds
• 2 parsnips, peeled and chopped into bite-sized pieces
• 1lb baby potatoes, halved (or quartered if large)
• 2 tbsp high-quality extra virgin olive oil
• 1 tsp dried thyme (or 1 tbsp fresh thyme leaves for a brighter finish)
• 1/2 tsp sea salt
• 1/4 tsp freshly cracked black pepper
• 1 large lemon, sliced into thin rounds
• A handful of fresh flat-leaf parsley, roughly chopped

1. Preheat and Prep: Set your oven to 400°F (200°C). A hot oven is the secret to getting those root vegetables browned rather than steamed.
2. Roast the Roots: Toss your carrots, parsnips, and potatoes in a large bowl with the olive oil, thyme, salt, and pepper. Arrange them in a single layer on a parchment-lined baking sheet. Roast for 25 minutes. You are looking for a light golden-brown edge.
3. Nestle the Fish: Remove the sheet pan from the oven. Clear small spaces among the vegetables and carefully nestle the cod fillets in. Place a slice of lemon directly on top of each fillet; the citrus oils will infuse the fish as it finishes cooking.
4. The Final Bake: Return the pan to the oven for another 10 to 12 minutes. The fish should be opaque and flake cleanly under the pressure of a fork.
5. Garnish and Serve: Finish with a fresh shower of chopped parsley. Serve directly from the pan for that rustic, home-cooked feel.

To save time during the week, you can chop your carrots, parsnips, and potatoes up to 48 hours in advance. Store them in a container with a damp paper towel to keep them crisp.

Storage: Leftovers will keep in an airtight container in the refrigerator for up to 3 days. Because cod is delicate, I recommend reheating it gently in a toaster oven or a skillet with a splash of water over medium-low heat rather than blasting it in the microwave.