HEAT oven to 375ºF. Cook and stir chicken and cumin in nonstick skillet sprayed with cooking spray on medium heat 2 min. Add peppers; cook 2 min., stirring occasionally. Stir in salsa; cook 2 min. Add cream cheese spread; cook 2 min. or until melted. Stir in beans and tomatoes.
SPOON 1/3 of chicken mixture into 8-inch square baking dish; cover with tortilla and half each of remaining chicken mixture and shredded cheese. Top with second tortilla and remaining chicken mixture; cover with foil.
BAKE 20 min. or until heated through. Sprinkle with remaining shredded cheese; bake, uncovered, 5 min. or until melted.