This is a great salad, especially for the summer. My boyfriend loves it!
In a large bowl, whisk together the mayonnaise and salt. Stir in the lettuce, onion, tomato and tuna until all ingredients are coated. Enjoy!
Per Serving: 474 calories; protein 10.8g; carbohydrates 11.1g; fat 44.3g; cholesterol 30.3mg; sodium 640.3mg.