How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Baked Fish Au Gratin?

You need 10 ingredients. The key ingredients include: 1 lb. or more fish fillets, 8 slices American cheese, 1/4 c. chopped parsley, 1 tsp. oregano, basil or thyme, and more.

Is Baked Fish Au Gratin suitable as seafood?

Yes, Baked Fish Au Gratin falls under the Seafood category and is a great choice for this type of meal.

How do I store leftover Baked Fish Au Gratin?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Baked Fish Au Gratin Recipe

Name: Baked Fish Au Gratin
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 lb. or more fish fillets; 8 slices American cheese; 1/4 c. chopped parsley; 1 tsp. oregano, basil or thyme; 1/4 c. corn oil; 1 c. chopped onion; 2 Tbsp. cornstarch; 1/8 tsp. salt; 1/8 tsp. pepper; 1 1/2 c. milk

Try this homemade Baked Fish Au Gratin recipe the whole family will love. Made with American cheese, parsley, oregano and corn oil. Easy step-by-step in…

This Baked Fish Au Gratin relies on simple, everyday ingredients such as or more fish fillets, american cheese, chopped parsley and oregano, basil or thyme. It comes together quickly and makes 4 servings, at about 370 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Seafood

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Feel free to swap in similar ingredients you already have on hand and adjust seasoning to taste.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Baked Fish Au Gratin

Tips for the best results

Variations & substitutions

My Personal Notes

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