Cut catfish in 3-inch pieces. Season lightly with salt and pepper. Coat with breadcrumbs. In 12-inch skillet cook catfish in hot oil 6 to 8 minutes, turning once, until golden and fish flakes easily when tested with a fork.
Divide catfish among buns. Top with sweet pepper rings, cheese, and coleslaw. If desired, top with hot pepper sauce and/or serve with hot peppers. Makes 4 servings.