1 1/2 cups canned salmon or tuna, drained
2 large potatoes, peeled, sliced thinly
1 piece leek, white part only, sliced thinly
salt and pepper
1/4 cup grated cheddar cheese
1 cup sour cream
1 tablespoon oil
1 tablespoon butter
Preheat oven to 375°F. Butter a shallow casserole dish.
Line with 1/3 the potatoes, 1/2 the flaked fish and 1/2 the leeks. Repeat layer and top with cheese. Season with salt and pepper. Cover top with remaining potatoes.
In a bowl, mix oil with sour cream. Pour over potatoes then dot with butter.
Bake covered for 45 minutes to 1 hour.
Continue baking until top browns.