I should mention this is my personal adaptation of Kraft Food's Grilled Bruschetta Chicken recipe.
4 boneless, skinless chicken breasts
fat-free Italian dressing (or other marinade)
1 can diced tomatoes
Marinate chicken in dressing or other marinade for at least 30 minutes. Broil chicken breasts, 20-30 minutes, turning halfway through, making sure to completely cook chicken.
Meanwhile, drain tomatoes and mix with mozzarella cheese and basil, to taste. Add mixture to the top of the chicken during the last 5 minutes of cooking time.
Note: In addition to fat-free Italian dressing, I've also used McCormick's tomato, garlic and basil marinade mix, and its really good, too.