In the hustle of a busy week, there’s nothing like the uncomplicated comfort of coming home to a warm, inviting meal. This Creamy Rosemary Baked Cod with Yukon Gold Potatoes is the perfect answer to the evening rush, marrying tender cod with buttery potatoes in a luscious rosemary cream sauce. Not only is this a delightful one-dish meal that takes the stress out of cleanup, but it also transforms simple ingredients into a comforting gourmet experience in no time. Plus, it’s gluten-free, making it a versatile addition to your weeknight dinners. Curious how such simple components come together to create a dinner that’ll impress everyone at the table? Let’s dive into the recipe!

Why is This Cod & Potatoes Recipe Special?

Simplicity at Its Best: This recipe is a breeze to prepare, perfect for those busy weeknights when you want a delicious meal without the hassle.

Creamy, Dreamy Sauce: The rosemary cream sauce boasts a rich flavor that elevates the cod and potatoes, making it feel like a gourmet dish right at home.

One-Dish Wonder: Cleanup is a snap since everything bakes together in one dish, leaving more time for you to relax after dinner.

Comfort Food Classic: Cozy and fulfilling, this meal wraps you in warmth from the first bite, providing a sense of comfort akin to your favorite childhood dishes.

Customizable Delight: Feel free to swap ingredients as needed—try adding sautéed spinach or swapping cod for haddock for a unique twist. For a similarly hearty comfort meal, don’t miss my Baked Cod Coconut recipe as well!

Cod & Potatoes Ingredients

• Discover the heart of this cozy dish!

For the Potatoes

Yukon gold potatoes – These provide a creamy texture; substitute with red or russet if you prefer.
Extra-virgin olive oil – Adds richness; avocado oil is a great alternative for a different flavor.
Kosher salt – Essential for seasoning; adjust to taste based on your butter or stock choice.
Freshly cracked black pepper – Enhances flavor beautifully; use pre-ground if you don’t have the whole.

For the Sauce

Salted butter – Creates a rich sauce base; opt for unsalted if you’re managing sodium.
Large shallot – Offers a sweet, mild onion flavor; a small onion can be used as a substitute.
Garlic cloves – Adds aromatic depth; garlic powder works in a pinch if fresh isn’t available.
Heavy cream – Gives the sauce its luxurious texture; half-and-half or whole milk can lighten it up.
Chicken or fish stock – Provides depth; vegetable stock can work for a meat-free option.
Fresh rosemary – Infuses a robust herbal flavor; dried rosemary can be used (½ teaspoon).
Lemon zest – Brightens the dish; lime zest can create a lovely twist.
Fresh lemon juice – Balances flavors; bottled lemon juice works when fresh isn’t on hand.
Dijon mustard – Adds tanginess; yellow mustard is a workable substitute with a slight flavor change.
Ground cayenne pepper – Contributes a hint of heat; simply omit if you prefer a milder dish.
Capers – Adds a briny note; chopped green olives are an excellent alternative.

For the Cod

Cod fillet – The star protein, flaky and mild; can be swapped with haddock, halibut, or tilapia.
Fresh parsley – An optional garnish for a pop of color and freshness; dried parsley can be used instead.

Step‑by‑Step Instructions for Creamy Rosemary Baked Cod with Yukon Gold Potatoes

Step 1: Roast the Potatoes
Preheat your oven to 450°F (232°C). In a large bowl, toss the Yukon Gold potatoes with extra-virgin olive oil, kosher salt, and freshly cracked black pepper until evenly coated. Transfer the seasoned potatoes onto a baking sheet in a single layer. Roast for 20-25 minutes, turning once, until they are golden brown and tender when pierced with a fork.

Step 2: Make the Creamy Sauce
While the potatoes are roasting, prepare the creamy rosemary sauce. In a saucepan over medium heat, melt the salted butter along with a drizzle of olive oil. Sauté the chopped shallot for about 5 minutes, stirring occasionally until it becomes translucent. Add minced garlic and cook for an additional minute, then stir in heavy cream, chicken stock, fresh rosemary, lemon zest and juice, Dijon mustard, cayenne pepper, and capers. Simmer for about 5 minutes, until the sauce slightly thickens.

Step 3: Prepare the Cod
Once the potatoes are roasted, lower the oven temperature to 400°F (204°C). Season the cod fillets with kosher salt and place the roasted potatoes evenly in a baking dish. Nestle the seasoned cod on top of the potatoes, then pour the creamy rosemary sauce generously over everything, ensuring the cod is well coated.

Step 4: Bake the Dish
Return the baking dish to the oven and bake uncovered for 10-15 minutes. Watch for the cod to turn opaque and flake easily with a fork, signaling that it is perfectly cooked through. The sauce should be bubbling, creating a beautiful golden color over the medley of cod and potatoes.

Step 5: Garnish and Serve
Once baked, remove the dish from the oven and let it rest for a couple of minutes. If desired, sprinkle fresh parsley on top for a burst of color and freshness. Serve your Creamy Rosemary Baked Cod with Yukon Gold Potatoes hot, paired with crusty bread or a light salad to balance the richness of the dish.

Expert Tips for the Best Cod & Potatoes

Consistent Sizing: Cut Yukon Gold potatoes into even pieces to ensure they roast uniformly, achieving that perfect softness and golden exterior.
Sauce Thickness Check: Ensure your rosemary cream sauce is thick enough by checking if it coats the back of a spoon—this indicates it’s ready for your cod.
Perfect Cod Timing: Keep an eye on the cod while it bakes, as overcooking can lead to a dry texture. Aim for an opaque look and easy flaking for the best results.
Flavor Adjustments: Always taste and adjust seasoning before baking, especially if you’re substituting stocks or butters so that the cod and potatoes shine.
Leftover Storage: If you have extra sauce, store it in an airtight container in the fridge. Reheat gently to maintain its creamy texture when serving with future meals.

Make Ahead Options

These Creamy Rosemary Baked Cod with Yukon Gold Potatoes are perfect for meal prep! You can roast the potatoes up to 24 hours in advance and store them in an airtight container in the refrigerator to maintain their texture. Additionally, prepare the creamy sauce a day ahead—just store it separately to keep it fresh. When you’re ready to serve, simply reheat the sauce on low until warmed through. Arrange the roasted potatoes in the baking dish, nestle the seasoned cod on top, pour the reheated sauce over, and bake as directed for a delightful, stress-free dinner that feels just as delicious as if you had made it fresh!

Cod & Potatoes Variations

Feel free to explore these creative twists and make this dish your own!

Different Fish: Substitute cod with haddock or halibut for unique textures and flavors. Each fish brings its own personality to the dish, offering exciting variations each time you prepare it.
Vegan Option: Use non-dairy cream alternatives like coconut cream for a plant-based delight. This swap invites a lovely, tropical twist that harmonizes beautifully with the rosemary.
Extra Veggies: Add sautéed spinach or kale for a nutrient boost. These leafy greens not only enhance the dish’s color but also contribute a healthful crunch.
Zesty Citrus: Swap lemon for lime zest and juice for a refreshing change. This little twist brightens the creamy sauce and adds a unique flair to your cod.
Heat Level: For those who love a bit more spice, increase the cayenne pepper or add a pinch of red pepper flakes. This will transform your dish into a warm embrace with a kick!
Herb Variations: Experiment with other herbs like thyme or dill in place of rosemary. Each herb brings a different aromatic experience, allowing you to tailor the dish to your taste preferences.
Potato Varieties: Try using sweet potatoes or fingerlings instead of Yukon gold for a fun twist. They add a touch of sweetness and different textures, making your dish even more delightful!
Creamy Cheese: Add a sprinkle of grated Parmesan or feta before baking for a rich, cheesy layer. Just imagine that melty goodness adding an extra layer of comfort to your meal.

If you’re in the mood for more comforting meals, give my Rib Ragu with Parmesan Mashed Potatoes recipe a try too!

What to Serve with Creamy Rosemary Baked Cod with Yukon Gold Potatoes

In the comforting embrace of a home-cooked meal, side dishes can elevate your dining experience, bringing balance and flair to your plate.

Crusty Bread: The perfect companion for soaking up the rich creamy sauce, a warm baguette or sourdough adds delightful texture.
Simple Green Salad: A fresh salad of mixed greens with a light vinaigrette cuts through the richness, providing crunch and brightness.
Roasted Asparagus: Tender, slightly charred asparagus adds a vibrant green element alongside the cod, enhancing the flavors with a hint of earthiness.
Steamed Broccoli: Crisp-tender broccoli offers a pop of color and a healthy crunch that complements the creaminess of the sauce beautifully.
Lemon Rice: Fluffy rice infused with lemon zest mirrors the dish’s citrus notes, making it a light yet satisfying addition.
Chardonnay: A glass of chilled Chardonnay balances the dish’s rich flavors, bringing a fruity freshness that pairs well with both cod and creamy sauce.
Baked Sweet Potatoes: Sweet, creamy baked potatoes with a hint of cinnamon lend a comforting sweetness, creating a delightful contrast with savory cod.
Chocolate Mousse: For dessert, a light chocolate mousse offers a sweet finish, contrasting beautifully with the main course and satisfying your sweet tooth.
Herbed Quinoa: Lightly seasoned quinoa brings nutty flavors and fluffy texture that nicely enhances the dish’s richness while being gluten-free.

How to Store and Freeze Cod & Potatoes

Fridge: Store leftovers in an airtight container for up to 3 days. Make sure the cod and potatoes are cooled before sealing to maintain freshness.

Freezer: For longer storage, freeze servings in an airtight container or freezer bag for up to 2 months. To prevent freezer burn, squeeze out excess air before sealing.

Reheating: When ready to enjoy, thaw in the fridge overnight. Reheat gently in the oven at 350°F (175°C) until heated through, ensuring the creamy sauce returns to its delightful consistency.

Leftover Sauce Storage: If you have extra rosemary cream sauce, keep it separately in the fridge for up to 3 days or freeze for up to 2 months. Reheat gently before use to savor its creamy goodness again with your cod & potatoes dish.

Creamy Rosemary Baked Cod with Yukon Gold Potatoes Recipe FAQs

How do I choose the best Yukon Gold potatoes for this recipe?
Look for Yukon Gold potatoes that are firm with smooth skin and free from dark spots or blemishes. Aim for medium-sized potatoes, which provide the best texture. If you find some with a few eyes, that’s fine; just make sure to remove them before cooking.

How long can I store leftovers in the refrigerator?
Absolutely! Store your leftovers in an airtight container in the refrigerator for up to 3 days. Make sure the dish has cooled down before sealing to keep everything fresh and delicious.

Can I freeze my Creamy Rosemary Baked Cod with Yukon Gold Potatoes?
Yes, you can! To freeze, portion the cod and potatoes in an airtight container or freezer bag. It will keep well for up to 2 months. Be sure to squeeze out as much air as possible to prevent freezer burn. When you’re ready to enjoy it, thaw it in the fridge overnight before gently reheating.

What should I do if my sauce is too thin?
If your sauce doesn’t thicken as expected, return it to a simmer and let it cook for an additional 2-5 minutes, stirring regularly. You can also mix a teaspoon of cornstarch with water to create a slurry; add it to the sauce while simmering until it reaches your desired thickness.

Are there any dietary concerns I should keep in mind?
For those who are gluten-sensitive, this dish is a fantastic option as it is naturally gluten-free! However, always check the labels on your stock and Dijon mustard, as some brands may contain gluten. If you have allergies to dairy, consider using a non-dairy cream alternative for the sauce.

How can I enhance the flavor of this dish?
Very! To elevate the flavors, consider adding fresh herbs like thyme or basil in addition to rosemary, or a splash of white wine in the sauce for an extra layer of richness. If you enjoy a bit of spice, try increasing the cayenne pepper or serving with a dash of hot sauce on the side.