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 Cheesy Baked Fillet Of Fish Casserole?

You need 8 ingredients. The key ingredients include: 1 cup sour cream, 2 tablespoons butter, 2 tablespoons lemon juice, 1 - 1 1/2 lb of firm white fish fillet (halibut, or ling cod work well), and more.

Is Cheesy Baked Fillet Of Fish Casserole suitable as seafood?

Yes, Cheesy Baked Fillet Of Fish Casserole falls under the Seafood category and is a great choice for this type of meal.

How do I store leftover Cheesy Baked Fillet Of Fish Casserole?

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

Cheesy Baked Fillet Of Fish Casserole Recipe

Name: Cheesy Baked Fillet Of Fish Casserole
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 cup sour cream; 2 tablespoons butter; 2 tablespoons lemon juice; 1 - 1 1/2 lb of firm white fish fillet (halibut, or ling cod work well); salt; pepper; 1/2 medium onion, thinly sliced and seperated into rings; 1 - 1 1/2 cup grated cheddar cheese

Try this homemade Cheesy Baked Fillet Of Fish Casserole recipe the whole family will love. Made with sour cream, butter, lemon juice and white fish. Eas…

This Cheesy Baked Fillet Of Fish Casserole relies on simple, everyday ingredients such as sour cream, butter, lemon juice and salt. It comes together quickly and makes 4 servings, at about 273 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

Servings: persons

1 cup sour cream
2 tablespoons butter
2 tablespoons lemon juice
1 - 1 1/2 lb of firm white fish fillet (halibut, or ling cod work well)
salt
pepper
1/2 medium onion, thinly sliced and seperated into rings
1 - 1 1/2 cup grated cheddar cheese

Frequently Asked Questions

Quick Info

Servings
4 servings
Calories
273 kcal
Category
Seafood

Eats Now Editorial Team

Recipe developed & tested in-house

Passionate cooks who develop and test new recipes every day – from quick weeknight dinners to special occasion feasts.

Reviewed by the Eats Now Kitchen Team

More about our team →

Cheesy Baked Fillet Of Fish Casserole

Tips for the best results

Variations & substitutions

My Personal Notes

How did you like this recipe?

Frequently Asked Questions