Preheat oven to 350 degrees. In a large skillet on medium heat, cook ground beef until no longer pink. Stir in salsa, reduce heat and simmer 20 min. or until liquid is absorbed. Stir in beans and heat through. Spray a 9x13 baking dish with cooking spray. Spread crushed tortilla chips in dish and spoon beef mix over chips. Spread sour cream over beef and sprinkle with olives, green onion, and tomato over sour cream. Top with cheese. Bake 30 min. or until hot and bubbly.