Tear off two large squares of al foil. Divide the lemon slices between the two parcels. Top each with a fish fillet. Season generously with salt and pepper.
Wrap up the foil into 2 parcels and seal tightly.
Bake for 10 minutes or until salmon is just cooked through.
Meanwhile, combine yoghurt and parsley. Season.
Serve salmon on a bed of the yoghurt sauce with lemon slices on top and salad leaves on the side.