1. Flatten chicken breasts to 1/4-inch thick between plastic wrap or waxed paper (see ALL ABOUT CHICKEN, 04-How to Flatten Chicken Breasts).
2. Heat 1/4 cup Caesar dressing (not creamy type) in 12-inch nonstick skillet over medium heat. Add chicken and cook about 10 minutes; turning chicken once, or until chicken is no longer pink in center.
3. A few minutes before removing from heat, sprinkle chicken with 1 cut-up tomato and 1/2 cup crumbled feta cheese; cover skillet to soften cheese.
From "Betty Crocker Best Chicken Cookbook." Text Copyright 1999 General Mills. Used with permission of the publisher, Wiley Publishing, Inc. All Rights Reserved.