Mix the mascarpone with the lemon juice and zest, chopped olives and parsley. Peel, chop and boil the potatoes till soft. Cook the garlic, bell pepper and leek in extra virgin olive oil in thick bottom pan over moderate fire. Stir in the potatoes, season with salt and pepper. Break the eggs and whisk with the milk powder, parsley, dill and parmesan, pour over the potatoes. Add in the smoked salmon and broccoli, move gently with a fork allowing to spread evenly. Continue cooking until mixture is set. Finish cooking under a grill.
Flip the omelette out of the pan, serve in wedges with a side salad and the mascarpone dressing.