To prepare the Dijon vinaigrette: Combine all the ingredients in a jar, seal, and shake well.
To prepare the salad ingredients: Fill a medium sized pot with water, season with salt, and place over high heat. When the water starts to boil, carefully add the potatoes. Boil the potatoes for about 25 minutes or until fork tender. Using a straining spoon, remove the boiled potatoes from the pot and set aside in a dish.
In the same pot, add the green beans and blanch for about 2 minutes or until tender. Remove the green beans from the pot and set aside. Carefully discard the boiling water.
Place the eggs in a small pot, cover the eggs with 1 inch of water, and bring the water to a boil over high heat. Turn off the heat and let the eggs sit for about 8 minutes. Remove the boiled eggs and place them in a bowl with cold water to stop the cooking. Peel the eggs under cold running water and cut the boiled eggs into 4 wedges.
Rinse the salmon fillet under cold water and pat dry. Season each side with salt and pepper
Over medium high heat, coat a small frying pan with oil. When the pan is hot, place the salmon fillet skin side down and cover the pan. Cook for about 8 to 10 minutes. Place the salmon on a cutting board and cut the fillet in half then into bite sized chunks. Reserve for later use.
To plate the salad: Add the salad greens to a large mixing bowl and toss the salad with the Dijon vinaigrette. Reserve some of the dressing for the remaining salad ingredients. Place the salad greens into two bowls to form the base of the salad. In batches using the same mixing bowl, dress the green beans, potatoes, tomatoes and olives. Equally portion out the salad ingredients between the two bowls. Finally top the salad with salmon and egg wedges.
Recipe from https://emicooks.com/salmon-nicoise-salad/