Preheat oven to 400°F. Pull out salmon from refrigerator 30 minutes before you plan on cooking it.
In a small bowl, combine olive oil with za-atar spice blend and coriander. Rub this on the salmon flesh.
Preheat a 10-inch cast iron skillet over medium-high heat. When you see white wisps of smoke in the pan, place salmon in, skin side down. Cook about 4 minutes, until skin is browning, and salmon is no longer sticking.
Slide entire pan into oven, and cook for 4-5 more minutes, depending upon the thickness of the salmon fillet. Remove from the pan immediately and serve.
Maple Sherry Vinaigrette
Juice lemons for about 1/2 cup lemon juice. Combine with remaining ingredients and whisk well to incorporate. Drizzle over your favorite salad greens.