1In shallow bowl, stir together Bisquick mix, cornmeal and seafood seasoning. Pat catfish fillets dry with paper towels; brush both sides of fillets with dressing. Coat with Bisquick mixture, lightly pressing mixture onto fillets.
2In 10-inch nonstick skillet, heat oil over medium-high heat. Cook catfish in hot oil 6 to 10 minutes, turning once, until fish flakes easily with fork. Serve immediately with lemon.