Preheat oven to 375 degrees F. Coat a large cast iron pan with a nonstick butter spray.
Rinse fish and pat dry; place on the cast iron pan. Season each fillet with salt, cracked pepper, lime zest and lime juice. Add fish to the pan. Place a pat of butter on each fillet and cook in the oven for 8 to 12 minutes.
Recipe courtesy of The Deen Brothers