Preparation Preheat oven to 400°F. Mix first 7 ingredients in small bowl. Place fillets on baking sheet. Brush on both sides with 1 tablespoon oil. Sprinkle top of each with seasoning. Heat heavy large skillet (preferably cast-iron) over high heat until very hot. Add remaining 1 tablespoon oil; swirl to coat. Place fillets, seasoned side down, in skillet. Cook until very brown on bottom, 1 minute. Return fillets, browned side up, to baking sheet. Place in oven; bake until just opaque in center, about 8 minutes. Top each with 1 teaspoon butter.
Preparation Preheat oven to 400°F. Mix first 7 ingredients in small bowl. Place fillets on baking sheet. Brush on both sides with 1 tablespoon oil. Sprinkle top of each with seasoning. Heat heavy large skillet (preferably cast-iron) over high heat until very hot. Add remaining 1 tablespoon oil; swirl to coat. Place fillets, seasoned side down, in skillet. Cook until very brown on bottom, 1 minute. Return fillets, browned side up, to baking sheet. Place in oven; bake until just opaque in center, about 8 minutes. Top each with 1 teaspoon butter.