Preparation:
1. Preheat oven to 500 degrees F. Place a large cast-iron skillet or other heavy-bottomed ovenproof skillet over high heat [on stove top] and heat until smoking.
2. Season salmon steaks with salt and pepper and spread them with 1 1/2 Tbsp. mustard.
3. Place the steaks, mustard-side down, into the dry, smoking skillet and cook them for 2 minutes without turning or touching.
4. Meanwhile spread remaining 1 1/2 Tbsp. on the top sides of the steaks. Carefully flip them and transfer the entire skillet to the oven.
5. Bake for 6 to 8 minutes, or until flesh is opaque.
6. Remove the skillet from the oven and transfer the steaks to serving plates. Squeeze lemon juice over the steaks and sprinkle them with fresh herbs. | 