Fish Fillets Thermidor
Creamy fish fillets thermidor features tender fish topped with a cheesy lemon sauce, ideal for elegant dinners or special occasions, offering rich flavors with a citrus twist.
Ingredients
Instructions
- Preheat oven to 350°F (175°C).
- Split fish fillets lengthwise and roll up; secure with toothpicks if necessary.
- Place the rolled fillets in a shallow baking dish.
- Pour milk over the fish; season with salt and pepper.
- Bake in the preheated oven for 30 minutes.
- Remove from oven and pour off the milk.
- In a saucepan, slowly add milk to melted margarine into which flour has been stirred.
- Add grated Cheddar cheese and stir until melted and smooth.
- Stir in lemon juice and pour the sauce over the baked fillets.
- Briefly brown the fillets under the broiler until golden.
Tips & Substitutions
For a creamier sauce, use heavy cream instead of milk. If you prefer a lighter option, try almond milk or a low-fat alternative. Ensure the cheese is fully melted for a smooth texture. Adjust the seasoning based on your preference; adding a pinch of cayenne can enhance the flavor. Consider using firm white fish like haddock or trout for the best results.
Serving Suggestions
Serve Fish Fillets Thermidor with a side of steamed vegetables or a fresh garden salad for a balanced meal. It pairs beautifully with Dill-Glazed Whitefish, making for a delightful seafood feast. Consider adding a slice of crusty bread to soak up the delicious sauce, or serve alongside rice or quinoa for a heartier dish.
Storage & Reheating
Store 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 until warmed through, ensuring not to dry it out. The sauce can separate if reheated in the microwave, so use the oven for best results.
Nutrition & Diet Analysis (per serving)
Each serving of Fish Fillets Thermidor contains roughly 186 calories, with 3g protein, 19g carbohydrates, and 11g fat. It is an excellent source of vitamin C (106% of the Daily Value), and a good source of dietary fiber. Note that it is relatively high in sodium, at 1903mg per serving (83% 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, frozen fish fillets can be used. Thaw them completely in the refrigerator before preparing the dish to ensure even cooking. Pat them dry to remove excess moisture, which helps the sauce adhere better.
What can I substitute for Cheddar cheese?
If you want a different flavor profile, you can substitute Cheddar cheese with Gruyère or Swiss cheese. Both melt well and add a nice richness to the sauce. For a non-dairy option, try a plant-based cheese that melts.
How can I make this dish spicier?
To add some heat, include a pinch of cayenne pepper or a few dashes of hot sauce in the cheese sauce. Alternatively, finely chop some jalapeños or add a sprinkle of red pepper flakes before broiling for a kick.
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).