Halibut Au Gratin

Prep: 10 min Cook: 40 min Serves: 4 Cuisine: American

A creamy, cheesy baked halibut dish featuring tender fish, onions, and a flavorful celery soup sauce, perfect for seafood lovers seeking comfort and elegance.

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Ingredients

  • 1 lb. halibut fillets, cut in 1-inch cubes
  • 1 Tbsp. flour
  • salt
  • pepper
  • 1 medium onion, sliced
  • 1 (10 oz.) can cream of celery soup

Instructions

  1. Place halibut cubes in a casserole dish.
  2. Dust flour over the fish and sprinkle with salt and pepper.
  3. Layer sliced onions over the fish.
  4. Mix cream of celery soup and milk together.
  5. Pour the soup mixture over the onions and fish.
  6. Bake in a 350°F oven for 30 minutes.
  7. Layer cheese on top and bake for an additional 10 minutes until golden.

Tips & Substitutions

For a lighter version, consider substituting the cream of celery soup with a homemade white sauce or a vegetarian soup. Adding fresh herbs like dill or parsley can enhance the flavor. If you prefer a crunchier topping, mix breadcrumbs with your cheese before layering it on top. This dish pairs beautifully with a side salad or steamed vegetables for a complete meal.

Serving Suggestions

Serve Halibut Au Gratin with a light side salad or steamed asparagus for a refreshing contrast. A glass of white wine, such as a Sauvignon Blanc, complements the dish beautifully. For a comforting dessert, consider pairing it with Fabulous Fudge Brownies to round out the meal.

Storage & Reheating

Leftover Halibut Au Gratin can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, place it in a preheated oven at 350°F for about 15-20 minutes until warmed through, ensuring the cheese remains melty without drying out the fish.

Nutrition & Diet Analysis (per serving)

Each serving of Halibut Au Gratin contains roughly 40 calories, with 2g protein, 5g carbohydrates, and 1g fat. Note that it is relatively high in sodium, at 1898mg per serving (83% of the Daily Value).

40 kcal 2% DV
Protein Fat Carbs

Macronutrients

Protein 1.9g 4% DV
Total Fat 1.3g 2% DV
Carbs 5.1g 2% DV
Fiber 0.2g 1% DV
Sugar 2.4g 5% DV

Electrolytes

Sodium 1897.8mg 83% DV
Potassium 95mg 2% DV
Cholesterol 3.5mg 1% DV

Vitamins & Minerals

Vitamin A 5.7mcg 1% DV
Vitamin C 0.3mg
Calcium 56.8mg 4% DV
Iron 0.2mg 1% DV
Diet fit Keto-friendly Under 400 cal
Contains Milk Wheat/Gluten Fish

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 halibut for this recipe?

Yes, you can use frozen halibut fillets. Just ensure they are fully thawed before cutting them into cubes. This will help them cook evenly during baking.

What can I substitute for cream of celery soup?

You can substitute cream of celery soup with cream of mushroom soup or a homemade white sauce. For a vegetarian option, consider using a vegetable-based soup for similar creaminess.

Can I add vegetables to this dish?

Absolutely! Vegetables like spinach, bell peppers, or zucchini can be added to the layers for extra nutrition and flavor. Just ensure they are pre-cooked slightly to avoid excess moisture in the dish.

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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