Steps:
1.
Marinate the salmon in the olive oil and lemon juice for 2 - 3 hours
2.
Wash the lettuce leaves and place on a large round plate
3. Remove
the salmon from the marinade and cut into thin strips (about 2cms) place on a
baking tray with a knob of butter spread on it to prevent sticking
4.
Place the baking tray under the grill for a few seconds turning the salmon
once so that it´s done on both sides
5. Place the strips of
salmon on top of the lettuce leaves and pour some of the marinade onto it adding
a few drops of white wine vinegar