Easy Leftover Fish Casserole Gratin
Quick and easy leftover fish casserole gratin with creamy sauce, potatoes, and cheese. Perfect for using cooked fish leftovers.
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Make a quick and delicious leftover fish casserole gratin with potatoes, creamy sauce, and cheese. Perfect comfort food using cooked fish leftovers.
Recipe Details
Prep time
15m
Cook time
30m
Rest time
5m
Total time
50m
Prep time
15m
Cook time
30m
Rest time
5m
Total time
50m
Ingredients
Servings:
1
1
- 150 g cooked white fish flakes (cod or haddock)
- 100 g boiled potato slices
- 15 g unsalted butter
- 10 g all purpose flour
- 150 ml whole milk
- 30 g grated cheddar cheese
- 30 g onion diced
- 1 piece garlic clove minced
- 5 g fresh parsley chopped
- 1 pinch salt
- 1 pinch black pepper ground
- 10 g bread crumbs
Origins International
Instructions
- Preheat oven to 180 degrees Celsius (350 Fahrenheit).
- Melt unsalted butter in a saucepan over medium heat.
- Add diced onion and minced garlic clove to the butter and cook until soft and translucent, about 5 minutes.
- Stir in all purpose flour and cook for 1 minute to form a roux.
- Gradually whisk in whole milk, stirring constantly to avoid lumps.
- Cook the sauce until it thickens, about 5 minutes, then remove from heat.
- Add salt, ground black pepper, and chopped fresh parsley to the sauce and mix well.
- In a baking dish, layer boiled potato slices evenly on the bottom.
- Spread cooked white fish flakes over the potatoes.
- For the prepared white sauce evenly over the fish and potatoes.
- Sprinkle grated cheddar cheese and bread crumbs evenly on top.
- Bake in the preheated oven for 25 minutes or until the top is golden and bubbling.
- Remove from oven and let rest for 5 minutes before serving.
Tips
- Use any cooked white fish leftovers like cod or haddock for best results.
- Make sure the sauce is thick enough to hold the casserole together.
- Let the casserole rest before serving to set the layers.
Serving Suggestions
- green salad with lemon vinaigrette
- steamed green beans
- crusty bread
This easy leftover fish casserole gratin is a comforting and tasty way to enjoy cooked fish with creamy sauce and cheese. Serve warm for best flavor.
Nutrition Facts
Estimated values per 100g.
- Fiber (g): 1
- Sodium (g): 0.3
- Sugar (g): 3
- Fat (g): 7
- Carbohydrates (g): 10
- Protein (g): 12
- Calories: 150
- Cholesterol (g): 0.05
- Saturated Fat (g): 3
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