Salmon lasagne leeks

I bought a large amount of leeks, but unfortunately everyone does not like at home. As I like to combine the leeks and salmon, I improvised lasagna that did not really taste like lasagna I admit, but that proved to be very good and that would almost love leeks recalcitrant .. .

for 4:
3 salmon fillets raw skinless 
800 g leeks white + 20 g butter 
500 ml white sauce (500 ml milk 40 g 40 g butter flour) 
some lasagna sheets without pre-cooking 
cheese grated at will

cream (optional) 
salt and pepper

Prepare the béchamel : Melt butter in a saucepan and then add 40 g of flour, mix well.Cook one minute while stirring. Pour the milk slowly into vigorously mixing to avoid lumps. Cook for 15-20 minutes on low heat while stirring. The sauce should be semi-liquid. Salt and pepper. Book.

Slice the leeks (use white and tender green, green leaves to keep the soup) 
Sauté in a pan with a little butter. regularly stir until leeks are cooked. 
Add the raw salmon diced and stir. Cook a few minutes' salmon must be entered but not completely cooked) 
salt and pepper.

Grease a baking dish and place a layer of dry lasagna background. Pour some béchamel on lasagna, put grated cheese, spread a layer of leek mixture / salmon then a layer of béchamel and then a layer of lasagne with béchamel and cheese and leek / salmon etc ... and realize the layers by putting béchamel sauce, leek / cheese and salmon lasagne in the order you want. Finish with a layer of lasagne covered with béchamel sauce and sprinkled with grated cheese. 
Bake at 180 ° for 35 to 45 minutes. The cheese must be grated.

     

verdict: pity that my pictures do not do homage to my flat, it was really good. I will start soon because I enjoyed the association. Children who were reluctant finally loved and ate everything. I preferred this way of eating leeks with béchamel to the one I used (leek wrapped in ham topped with bechamel) I put a lot of cheese, it helps. 
I also tested a version with ham instead of salmon, it's nice but I prefer the salmon.

I put some cream in my preparation leeks / salmon (25-50 ml) but it is not really necessary. 
I put a lot of béchamel layers, it may not be necessary to put as (alternate may simply lasagna / bechamel / cheese / leek / lasagna / bechamel / cheese / leek etc ... ending with noodles / bechamel / cheese)