Baked Fish With Potatoes And Onions
A comforting baked fish dish layered with thinly sliced potatoes, onions, and peppers, topped with a creamy cheese sauce. Perfect for family dinners and fish lovers alike.
Ingredients
- 1 lb. baking potatoes, very thinly sliced ⓘ
- 1 large onion, very thinly sliced ⓘ
- 1 small red or green bell pepper, thinly sliced ⓘ
- salt ⓘ
- black pepper ⓘ
- 1/2 tsp. dried oregano, crushed ⓘ
- 1 lb. lean fish fillets, cut 1-inch thick ⓘ
- 1/4 c. butter or margarine ⓘ
- 1/4 c. all-purpose flour ⓘ
- 2 c. milk
- 3/4 c. shredded Cheddar cheese ⓘ
Instructions
- Arrange half of the sliced potatoes in a buttered 3-quart casserole.
- Top with half of the sliced onion and half of the sliced bell pepper.
- Season with salt, black pepper, and 1/4 teaspoon of dried oregano.
- Arrange the fish fillets in one layer over the vegetables.
- Layer the remaining sliced potatoes, onion, and bell pepper over the fish.
- Season with salt, black pepper, and the remaining 1/4 teaspoon of oregano.
- Melt butter in a medium saucepan over medium heat.
- Stir in the flour and cook until bubbly, stirring constantly.
- Gradually stir in the milk.
- Cook until the sauce thickens, stirring constantly.
- Pour the white sauce over the assembled casserole.
- Cover and bake in a preheated 375°F oven for 40 minutes or until potatoes are tender.
- Sprinkle with shredded Cheddar cheese.
- Bake uncovered for about 5 minutes more until the cheese is melted.
Tips & Substitutions
For added flavor, consider marinating the fish fillets in lemon juice and herbs for about 30 minutes before baking. If you don’t have Cheddar cheese, Gruyère or Monterey Jack can be excellent substitutes. Ensure even cooking by slicing the potatoes uniformly, and feel free to add other vegetables like zucchini or carrots to enhance the dish. This recipe can be adapted for other seafood recipes as well.
Serving Suggestions
This baked fish dish pairs beautifully with a fresh green salad or steamed vegetables for a balanced meal. A side of crusty bread can be delightful for sopping up the sauce. Consider serving with a light, citrus-based dressing to enhance the flavors. It’s a comforting dish that complements other seafood recipes well.
Storage & Reheating
Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, place the casserole in a preheated oven at 350°F for about 20 minutes, or until heated through. For a quicker option, microwave individual portions but cover them to retain moisture.
Nutrition & Diet Analysis (per serving)
Each serving of Baked Fish With Potatoes And Onions contains roughly 680 calories, with 24g protein, 114g carbohydrates, and 27g fat. It is an excellent source of iron (222% of the Daily Value), dietary fiber (197% of the Daily Value), and calcium (154% of the Daily Value), and a good source of vitamin A. Note that it is relatively high in sodium, at 3000mg per serving (130% of the Daily Value).
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, but make sure to thaw them completely and pat them dry before assembling the casserole. This prevents excess moisture which can make the dish watery.
What type of fish works best for this recipe?
Lean white fish such as cod, haddock, or tilapia are ideal for this recipe as they hold up well during baking and have a mild flavor. Avoid oily fish like salmon, as they may alter the dish's texture.
Can I make this recipe ahead of time?
Absolutely! You can assemble the casserole a day in advance and store it in the refrigerator. Just add a few extra minutes to the baking time if you bake it straight from the fridge.
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).