Easy Oven-Baked Cod & Bok Choy Fish Packages: A Healthy & Flavorful Meal
Discover the ultimate healthy and delicious dinner solution: cod fish packages baked to perfection in their own juices. Topped with fresh bok choy, sun-dried tomatoes, savory onion, and bright lemon, this meal is a symphony of flavors and textures, ensuring a juicy and tender fish every time.
If you’re searching for a meal that effortlessly combines health, flavor, and convenience, look no further than these oven-baked cod fish packages. This recipe transforms simple ingredients into a gourmet experience, all while keeping cleanup minimal. The beauty of baking fish in parchment paper (a technique known as “en papillote”) is that it allows the cod to gently steam in its natural juices, absorbing the aromatic flavors of the accompanying bok choy, sun-dried tomatoes, onions, and lemon. The result is consistently moist, flaky fish and perfectly tender-crisp vegetables, making for a truly delightful and nutritious dinner.
Why You’ll Love This Cod and Bok Choy Packet Recipe
This recipe isn’t just a meal; it’s a culinary revelation for busy weeknights or a light, impressive dish for entertaining. Here’s why it’s bound to become a staple in your kitchen:
- Effortless Preparation: With just a few minutes of chopping and assembling, your meal is ready for the oven. It’s a fantastic option for those who want a homemade dinner without spending hours in the kitchen.
- Incredible Flavor: The combination of ingredients creates a harmonious blend of savory, sweet, and tangy notes. The sun-dried tomatoes offer a concentrated umami punch, while the lemon provides a refreshing zing that brightens the entire dish.
- Super Healthy: Cod is a lean protein source, rich in essential nutrients and low in fat. Bok choy adds a wealth of vitamins and fiber, and the entire meal is cooked with minimal added fats, making it a truly wholesome choice.
- Moist & Tender Fish: Baking in parchment paper traps steam, ensuring the cod stays incredibly moist and flaky, never dry. This method is ideal for delicate fish fillets.
- Minimal Cleanup: Since everything cooks inside the parchment paper, there are virtually no messy pans to scrub afterwards. Simply discard the parchment, and you’re done!
- Versatile & Customizable: Easily adapt the recipe to your preferences. Swap out the fish, add different vegetables, or experiment with various herbs and spices.

The Magic of “En Papillote” Cooking (Baking in Parchment)
The French culinary term “en papillote” literally means “in parchment” and refers to a cooking method where food is baked inside a folded pouch of parchment paper. This technique is particularly well-suited for delicate ingredients like fish and vegetables because it creates a mini-steaming environment within the oven. As the package heats, moisture from the ingredients and any added liquids (like olive oil and lemon juice in this recipe) turns into steam, gently cooking the food. This process has several distinct advantages:
- Locks in Moisture: The sealed packet prevents moisture from escaping, resulting in incredibly succulent fish and tender vegetables.
- Infuses Flavors: All the aromas and flavors from the various ingredients meld together beautifully within the confined space, creating a more intense and cohesive taste experience.
- Nutrient Retention: Steaming is a gentle cooking method that helps retain more of the vitamins and minerals in your food compared to boiling or frying.
- Visual Appeal: Serving the individual packets at the table adds a touch of theatricality. Guests can open their own fragrant package, releasing a delightful cloud of steam and aroma.
- Portion Control: Each packet is a perfectly portioned meal, making it easy to manage serving sizes.
While often associated with gourmet dining, cooking “en papillote” is surprisingly simple and accessible for home cooks. It’s a technique that delivers impressive results with minimal effort, perfectly exemplified by this cod and bok choy recipe.
📖 Recipe: Healthy Oven-Baked Cod with Bok Choy
RECIPE CARD

Andréa
Pin Recipe
Equipment
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A conventional oven is used. When using a convection oven (with air fan) decrease the temperature with 30 °F / 20 °C
Ingredients
- 1 stalk bok choy
- 8 sun-dried tomatoes
- 1 red onion
- 1 lemon
- olive oil, lemon flavor
- 4 cod fillets
- salt and pepper , to taste
All my recipes are written both in Metric (gram / ml) and US Customary (cups / pounds). Here you can select which type of amount you would like to see.
Instructions
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Preheat the oven to 200 degrees Celsius (approximately 400°F).
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Wash the bok choy thoroughly and separate the leaves from the stalk.
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Slice both the bok choy leaves and the firmer white stalks into thin strips.
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Chop the sun-dried tomatoes into small, bite-sized strips.
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Cut the red onion into thin rings for even cooking and flavor distribution.
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Wash the lemon thoroughly and cut it into thin slices.
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Lay out a piece of parchment paper (about 12×16 inches or 30×40 cm) on a clean surface and brush the center with a little lemon-flavored olive oil.
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Arrange a base layer of bok choy stems, followed by some bok choy leaves, in the center of the oiled parchment paper. This will protect the fish and infuse flavor.
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Place a portion of red onion rings, chopped sun-dried tomatoes, and a slice of lemon on top of the bok choy.
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Carefully place one cod fillet on top of the vegetable mixture. Season generously with salt and freshly ground black pepper to taste.
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Crown the cod fillet with an additional slice of lemon for extra citrusy flavor and aroma.
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Fold the parchment paper over the fish and vegetables, sealing the edges tightly by crimping or folding them together to create a secure packet. If desired, you can tie it with kitchen twine for a decorative touch, but a tight fold is usually sufficient.
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Place the prepared packet onto a baking sheet. Repeat the entire process for the remaining cod fillets and place all packages on the baking sheet, ensuring they are not overcrowded.
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Slide the baking sheet into the preheated oven and bake for approximately 20 minutes, or until the fish is cooked through and flakes easily with a fork.
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Carefully open each package (be mindful of escaping steam!) and serve immediately. Enjoy the fresh, vibrant flavors!
Nutrition
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Key Ingredients and Their Flavor Contributions
Each ingredient in this cod and bok choy recipe plays a vital role in creating a balanced, flavorful, and healthy meal. Understanding their individual contributions highlights the simplicity and genius of this dish:
Cod Fillets: Lean Protein Powerhouse
Cod is a white, flaky fish known for its mild flavor and lean texture. It’s an excellent source of high-quality protein, B vitamins, and essential minerals like phosphorus and selenium. Its delicate nature makes it perfect for baking en papillote, as it quickly absorbs the surrounding flavors while remaining incredibly moist. For best results, use fresh, wild-caught cod if possible.
Bok Choy: The Versatile Asian Green
Bok choy, also known as pak choi or Chinese cabbage, offers a unique combination of crisp, slightly bitter green leaves and crunchy, mild white stalks. It’s packed with vitamins A, C, and K, as well as calcium and folate. When baked in the packet, the stalks retain a pleasant bite, while the leaves become tender, adding a wonderful freshness and subtle earthy flavor that complements the fish beautifully.
Sun-Dried Tomatoes & Red Onion: A Burst of Umami and Sweetness
These two ingredients are flavor champions in this recipe. Sun-dried tomatoes provide an intense, concentrated umami flavor and a chewy texture that adds depth and richness to the dish. Their sweetness is amplified during baking. Red onions, when thinly sliced and baked, soften and release their natural sugars, mellowing into a delightful sweetness that contrasts with the savory elements and brightens the overall taste profile. They contribute both flavor and a pleasant aromatic quality.
Lemon & Olive Oil: The Bright Finish
Lemon is indispensable in fish cookery, and here it works double duty. The lemon-infused olive oil brushed on the parchment paper and the fresh lemon slices placed directly with the fish contribute a zesty, bright acidity that cuts through the richness and enhances the natural taste of the cod and vegetables. It adds a crucial layer of freshness that elevates the entire dish, making it feel light and vibrant.
Tips for Perfect Fish Packets Every Time
While this recipe is straightforward, a few tips can ensure your cod and bok choy packages turn out perfectly cooked and bursting with flavor:
- Use Quality Parchment Paper: Ensure your parchment paper is oven-safe and large enough to comfortably wrap your ingredients. Avoid using aluminum foil unless you prefer that specific cooking method, as parchment provides better steaming and non-stick properties.
- Don’t Overcrowd the Packets: Give your ingredients enough room to steam properly. Overfilling can lead to uneven cooking and might prevent the packet from sealing correctly. Each fillet should have its own package.
- Seal Tightly: The key to “en papillote” is creating a tight seal. Take your time to crimp or fold the edges of the parchment paper multiple times to prevent steam from escaping. This ensures the fish cooks thoroughly and stays moist.
- Adjust Cooking Time for Thickness: While 20 minutes is a good guideline, the exact cooking time might vary slightly depending on the thickness of your cod fillets. Thicker fillets may need a few extra minutes, while thinner ones might cook faster.
- Check for Doneness: Gently press on the packet – it should feel slightly firm. The best way to check is to carefully open one packet; the fish should be opaque throughout and flake easily with a fork.
- Experiment with Flavors: Don’t be afraid to customize! Add a pinch of red pepper flakes for heat, a sprig of fresh dill or thyme, or a splash of white wine to the packet for an extra layer of flavor. Ginger and garlic would also be fantastic additions to this Asian-inspired combination.
Serving Suggestions and Pairings
These healthy oven-baked cod and bok choy fish packages are a complete meal in themselves, but they also pair wonderfully with a variety of side dishes to make for a more substantial dinner. Here are some excellent ideas:
- Steamed Rice or Quinoa: A simple bed of fluffy white rice, brown rice, or quinoa is perfect for soaking up the delicious juices from the fish packets.
- Noodles: Light rice noodles or soba noodles, perhaps tossed with a touch of sesame oil, can complement the Asian flavors of the bok choy.
- A Light Green Salad: A fresh, crisp green salad with a vinaigrette dressing would provide a refreshing contrast to the warm, savory fish.
- Crusty Bread: Serve with some crusty bread to sop up every last drop of the flavorful liquid.
- Roasted Potatoes or Sweet Potatoes: For a heartier meal, a side of roasted mini potatoes or sweet potato wedges would be a delicious addition.
- Couscous or Farro: These grains offer a delightful texture and can be prepared quickly while the fish bakes.
No matter what you choose, aim for something simple that won’t overpower the delicate flavors of the fish and vegetables. The goal is to enhance, not compete with, the main dish.
Health Benefits of This Delicious Meal
This cod and bok choy fish package is a nutritional powerhouse, making it an excellent choice for a healthy lifestyle. Here’s a breakdown of its key health benefits:
- Rich in Lean Protein: Cod is an outstanding source of lean protein, essential for muscle repair, growth, and overall body function. It helps keep you feeling full and satisfied.
- Omega-3 Fatty Acids: While not as high as salmon, cod still provides beneficial omega-3 fatty acids (EPA and DHA), which are crucial for heart health, brain function, and reducing inflammation.
- Abundant in Vitamins and Minerals:
- Bok Choy: Loaded with Vitamin K (important for blood clotting and bone health), Vitamin A (for vision and immune function), and Vitamin C (an antioxidant for immune support). It also provides calcium, potassium, and folate.
- Cod: A good source of B vitamins (B12, B6, niacin), phosphorus, and selenium, which support energy metabolism, nerve function, and antioxidant defense.
- Lemon: Adds a boost of Vitamin C, enhancing nutrient absorption and acting as an antioxidant.
- Low in Calories and Fat: This meal is inherently low in calories and saturated fat, making it suitable for weight management and heart-healthy diets.
- High in Fiber: Bok choy contributes dietary fiber, which aids digestion, promotes gut health, and helps regulate blood sugar levels.
- Antioxidant Properties: The combination of vegetables and lemon provides a good array of antioxidants, which help protect your cells from damage caused by free radicals.
Incorporating meals like these into your diet regularly can contribute significantly to your overall well-being, providing a delicious way to consume essential nutrients.
Frequently Asked Questions (FAQs)
Can I use other types of fish for this recipe?
Absolutely! This “en papillote” method works beautifully with other firm white fish fillets. Great alternatives include halibut, tilapia, snapper, or even salmon (though salmon has a stronger flavor). Adjust baking time slightly based on the thickness of the fish.
What if I don’t have bok choy?
While bok choy offers a unique texture and flavor, you can substitute it with other quick-cooking greens or vegetables. Spinach, thinly sliced cabbage, kale (massaged with a little oil first), or even asparagus spears would work well. Ensure they are sliced thinly or are naturally tender.
How do I know when the fish is cooked?
The fish is cooked when it’s opaque throughout and flakes easily with a fork. For cod, this usually takes about 15-20 minutes, depending on thickness. If you have a food thermometer, the internal temperature should reach 145°F (63°C).
Can I prepare these packets ahead of time?
Yes, you can assemble the packets up to a few hours in advance and store them in the refrigerator. Just be sure to bring them to room temperature for about 15-20 minutes before baking to ensure even cooking.
This oven-baked cod and bok choy fish packet recipe truly embodies convenience and healthy eating without compromising on flavor. It’s a testament to how simple ingredients, when cooked with a clever technique, can create a meal that feels both gourmet and incredibly nourishing. Whether you’re a seasoned chef or a novice in the kitchen, this recipe promises a delightful and satisfying experience. Give it a try tonight, and prepare to be amazed by the tender fish and vibrant flavors!
Tried this recipe?
Let us know how it was!