Preheat the grill and also pre-heat the pan on a medium heat for around 30-60 seconds.
First add the chopped leek to the pan. When the leeks are soft add the potato.
Next add the chopped smoked salmon and the defrosted peas.
Give it a stir so ingredients are well distributed.
Beat the chives into the egg and pour over the pan. Coax the egg all around the pan before it starts to cook and then allow to set around the hot ingredients.
When the egg is nearly cooked, pop the pan under the grill making sure the handle is still sticking out. Grill for one minute.
After one minute sprinkle over the cheese. Grill for a further minute.
Serve immediately. A dollop of creme fraiche, some dill and a green salad works well.