:Heat oven to 350°F. Spray 13x9-inch (3-quart) glass baking dish with cooking spray.In large bowl, stir together chicken, veggies, soups, tomatoes, chili powder and garlic salt.Layer one-third of the tortilla pieces in baking dish. Top with one-third of the chicken mixture and 2/3 cup of the cheese. Repeat layers twice, ending with the cheese.Bake uncovered 32 to 35 minutes or until bubbly.