Catfish Fillets

Preparation Butter 10" microwave safe dish. In a single layer, place fish fillets. Smother with Ott's Famous "The Red" Dressing and diced onion. Cover loosely and cook on HIGH (700 watts) for 6 minutes, turning once a minute (if not using a microwave with turntable). Remove from microwave oven and cover evenly with mixture of tomato sauce, seasoned salt and shredded cheddar cheese. Re-cover and cook, turning as before (if not using turntable) for 3 to 4 minutes. Serve with the resulting sauce.