Fish Fillets Baked In Foil

Prep: 15 min Cook: 30 min Serves: 6 Cuisine: American

Juicy baked fish fillets wrapped in foil with fresh vegetables, herbs, and lemon, perfect for a quick, flavorful, and healthy seafood meal suitable for family dinners.

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Ingredients

  • 3 lb. fish fillets (sole, flounder, or any kind)
  • 6 small white onions or 3 medium
  • 6 small carrots
  • 1/3 cup margarine
  • 1 teaspoon salt
  • 1/4 teaspoon pepper
  • 1 tablespoon minced parsley
  • 1 1/2 tablespoons lemon juice

Instructions

  1. Preheat the oven to 425°F (220°C).
  2. Cut each fish fillet into 3 portions and place each in the center of an 8-inch square of buttered, double-layer aluminum foil.
  3. Peel and thinly slice the onions and carrots.
  4. Place the sliced onions and carrots over the fillets.
  5. Melt the margarine and pour it over each serving.
  6. Dust with salt, pepper, and minced parsley.
  7. Sprinkle lemon juice over the fillets.
  8. Top each with cheese.
  9. Fold the foil over the fish and securely close all edges to form a sealed packet.
  10. Place the foil packets on a cookie sheet and bake for 30 minutes.
  11. Open the foil packets carefully and serve hot.

Tips & Substitutions

For even cooking, ensure the fish fillets are of similar thickness. If you don’t have margarine, unsalted butter works well as a substitute. Adding a splash of white wine or a few capers can elevate the flavors. For a twist, consider using a different herb, like dill or thyme, to complement the dish. You can also add sliced bell peppers for extra color and taste.

Serving Suggestions

Serve the baked fish fillets with a side of steamed vegetables or a fresh garden salad for a light meal. They pair beautifully with sliced baked potatoes, which can be used as a main dish. A glass of chilled white wine or a light beer complements the flavors perfectly. For a complete meal, consider adding some crusty bread to soak up the delicious juices.

Storage & Reheating

Store any leftovers in an airtight container in the refrigerator for up to 2 days. To reheat, place the fish in a preheated oven at 350°F (175°C) for about 10-15 minutes, or until heated through. Avoid microwaving as it can make the fish rubbery.

Nutrition & Diet Analysis (per serving)

Each serving of Fish Fillets Baked In Foil contains roughly 848 calories, with 5g protein, 29g carbohydrates, and 82g fat. It is an excellent source of vitamin C (211% of the Daily Value), vitamin A (55% of the Daily Value), and dietary fiber (39% of the Daily Value), and a good source of protein and iron. Note that it is relatively high in sodium, at 1913mg per serving (83% of the Daily Value).

848 kcal 42% DV
Protein Fat Carbs

Macronutrients

Protein 5.5g 11% DV
Total Fat 82g 100% DV
Carbs 28.9g 11% DV
Fiber 10.9g 39% DV
Sugar 11g 22% DV

Electrolytes

Sodium 1912.7mg 83% DV
Potassium 1062.6mg 23% DV

Vitamins & Minerals

Vitamin A 495mcg 55% DV
Vitamin C 189.8mg 100% DV
Calcium 72.1mg 6% DV
Iron 1.9mg 10% DV
Diet fit High-fiber

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I use frozen fish fillets for this recipe?

Yes, you can use frozen fish fillets. Just ensure they are completely thawed before cooking to ensure even baking. Pat them dry with paper towels to remove excess moisture, which helps achieve better flavor and texture.

What can I substitute for the onions if I don't like them?

If you're not a fan of onions, you can substitute them with leeks or shallots, which provide a milder flavor. Alternatively, you can completely omit them and add more carrots or even zucchini for added moisture and sweetness.

Is this recipe suitable for meal prep?

Absolutely! These foil packets are great for meal prep. You can assemble them in advance and store them in the refrigerator for up to 24 hours before baking. This makes it a convenient option for busy weeknights or for meal planning.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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