How to make Fish Au Gratin (Fiskgratäng) - a classic Swedish seafood casserole

cream

🥗Healthier: Greek yogurt

💰Cheaper: milk + cornstarch

Greek yogurt reduces calories while maintaining creaminess

cheese

🥗Healthier: nutritional yeast

💰Cheaper: processed cheese

Nutritional yeast is dairy-free and adds a cheesy flavor.

fish fillets

🥗Healthier: tofu

💰Cheaper: canned fish

Tofu is plant-based and lower in calories.

butter

🥗Healthier: olive oil

💰Cheaper: margarine

Olive oil is healthier and adds flavor.

Preheat the oven to 200°C (400°F).

Grease a baking dish with butter.

Slice the potatoes and onion thinly.

Layer half of the potatoes in the baking dish, followed by half of the onions.

Place the fish fillets on top of the potatoes and onions.

Season the fish with salt, black pepper, and lemon juice.

Layer the remaining potatoes and onions over the fish.

In a saucepan, melt butter over medium heat and stir in flour until smooth.

Gradually whisk in milk and cream, cooking until thickened, about 5 minutes.

Remove from heat and stir in cheese until melted.

Pour the sauce over the layered fish and vegetables.

Sprinkle bread crumbs on top for a crispy finish.

Bake in the preheated oven for 30-40 minutes until golden and bubbly.

Let cool slightly before serving.

Cooking Techniques

Spice Level:

Allergens