1. Spray medium skillet with nonstick cooking spray. Heat over medium-high heat until hot. Pat fillets dry with paper towel; sprinkle both sides with Cajun seasoning. Cook 10 to 14 minutes or until fish flakes easily with fork, turning once.
2. To assemble sandwiches, spread sandwich bun halves with tartar sauce. Fill each with tomato slice, lettuce leaf and cooked fillet.
Nutrition Information Per Serving: Serving Size: 1 Sandwich * Calories: 340 * Calories from Fat: 110 * % Daily Value: Total Fat: 12 g 18% * Saturated Fat: 2 g 10% * Cholesterol: 55 mg 18% * Sodium: 850 mg 35% * Total Carbohydrate: 31 g 10% * Dietary Fiber: 2 g 8% * Sugars: 2 g * Protein: 26 g * Vitamin A: 4% * Vitamin C: 4% * Calcium: 8% * Iron: 15% * Dietary Exchanges: 2 Starch, 3 Very Lean Meat, 1 1/2 Fat or 2 Carbohydrate, 3 Very Lean Meat, 1 1/2 Fat