For 6 people
For 6 people
In a buttered pan, brown the chopped onions then add the garlic.
Then add the flour and then the milk gradually, stirring constantly.
Add the salmon, dill, salt, pepper.
In a gratin dish, put a first layer of sauce then cover with lasagna sheets, then the sauce and finally sprinkle with grated Gruyère cheese.
Bake for 45 minutes in the oven at 180°C.
Serve.