Ingredients:

3 potatoes

1 onion

2 tablespoons butter

2 cans (125 g each) sardines in olive oil

3 eggs

1 cup (250 ml) fat-free cream

Salt

Black pepper

100 g Swiss cheese

Instructions:

Preheat oven to 200°C (400°F).

Boil the potatoes until tender, then drain and cut into strips.

You can also cut the potatoes before boiling them.

While the potatoes are cooking, heat the butter in a frying pan over medium heat.

Add the onion and cook until golden brown.

Lightly mash the sardines in a bowl.

Grease a shallow ceramic casserole dish with butter.

Layer half of the potatoes in the bottom of the dish.

Top with the fried onions and then the sardines.

Add the remaining potatoes on top.

In a separate bowl, whisk together the eggs, cream, salt, and pepper.

Pour the egg mixture over the potatoes and sardines.

Sprinkle the top with grated Swiss cheese.

Bake in the preheated oven for 40 minutes, or until the casserole is golden brown and bubbly.

Here are some additional tips for making this casserole:

If you don’t have fat-free cream, you can use regular cream or whole milk.

You can also add other ingredients to this casserole, such as chopped fresh herbs, diced tomatoes, or a sprinkle of paprika.

Leftovers can be stored in the refrigerator for up to 3 days.