5 layer salad.. sortof

Okay not exactly 7 layer salad but it does have layers! I'd never actually heard of 7 layer salad until a few weeks ago on 'How I met your mother' - I think that one involved a lot of mayonnaise, gummy bears and potato chips - clearly not the original.
This is a really nice quick and simply recipe and relatively healthy.

Scottish smoked salmon, avocado, Nicola potato and creme fraiche salad
Serves 2

4 Nicola potatoes, peeled and cut into 1.5 - 2 cm chunks
2 lemons
Extra virgin olive oil
2ml each Wholegrain and Dijon mustard (I like to use Maille)
Salt
Black pepper
2 hass avocados (they are more creamy than Fuerte)
a handful of wild rocket leaves
200g Scottish smoked salmon
Creme fraiche mixed with creamed horseradish (You could use what you have left over from the carpaccio)
Fresh chives

Boil the potatoes in salted water until just tender and then drain.
Make a dressing of 3 parts olive oil to 1 part lemon juice, mix with the mustards and season to taste.
Dress the potatoes while still warm,  keeping a bit of dressing left over for the rocket.
Mash the avo with some lemon and seasoning to taste.
Dress the rocket with the excess dressing.
Assemble the salad as follows:
First a layer of potatoes:

Then top with the avocado and the rocket:
 

Then the smoked salmon dressed with some lemon and back pepper:

And lastly the creme fraiche and chives.