Meanwhile, heat oil in large skillet on medium-high heat. Add chicken; cook and stir 5 min. or until lightly browned. Stir in tomatoes and soup; cook on medium heat 5 min. or until chicken is done, stirring occasionally.
Add Dinner; stir until blended. Sprinkle with cheese; cover. Cook 5 min. or until cheese is melted.
Prepare as directed, using KRAFT Shredded Colby & Monterey Jack Cheeses or KRAFT Shredded Mild Cheddar Cheese.