Preheat oven to 325°F Spray 13x9-inch baking dish with cooking spray; set aside.
Melt Fleischmann's in large saucepan over medium heat. Add bell pepper and onion; cook and stir about 5 minutes or until tender. Stir in both soups, undrained tomatoes and chicken.
Layer one-third each of tortillas, chicken mixture and cheese evenly in dish. Repeat layers twice more. Bake uncovered 40 minutes or until hot and bubbly.
COOK'S TIPS: May use any variety of Ro*Tel Tomatoes in place of Original to suit your taste.