Cut the fish into 4 equal pieces. Brush each piece with 1 tsp of the lemon-dijon dressing.
In a large non stick pan, drizzle 1 teaspoon of oil. Cook the salmon, skin side down, until just crisp- about 4-5 minutes. Turn the salmon over and cook dressing side down another 3-4 minutes.
In a large pot filled with salted boiling water, cook the green beans until crisp tender (about 3-4 minutes). Plunge the beans into an ice bath to stop the cooking process. Drain on a clean kitchen towel. In the same pot, add in the potatoes and cook until tender about 10-12 minutes or until a fork inserted pierces the skin easily. Drain the potatoes and slice in half. Keep warm.
To assemble: Place the salad greens on a large platter. Layer from left to right the feta, tomatoes, potatoes, haricots verts, olives and finally the eggs. Top with salmon and drizzle with Lemon- Dijon dressing. Serve with lemon wedges, if desired.