Prepare the Emeril's Herb Vinaigrette, and set aside.
Preheat the oven to 400 degrees F.
Sprinkle the salmon fillets on both sides with the salt and pepper. Spread the mustard on the flesh side of each fillet, and pack the herbs on the tops of the fillets with your hands.
Heat a large ovenproof skillet over high heat until very hot. Place the salmon fillets in the skillet and sear them, skin side down for 1 1/2 minutes. Place the skillet in the oven, and bake until the fish is medium rare, for about 6 minutes.
While the salmon is baking, prepare the Warm Greens.
To serve, place 1 serving of the greens on each plate, top with a salmon fillet, and spoon 1/4 cup of the vinaigrette over.
Yield: 4 main-course servings