Combine chicken, artichokes, tomatoes, 1 cup mozzarella and Parmesan. Beat cream cheese, milk, and garlic powder with mixer until well blended; stir in 2 tablespoons basil. Mix half with the chicken mixture.
Spread half of the remaining cream cheese sauce onto bottom of 13x9-inch baking dish; cover with 3 noodles and 1/3 of the chicken mixture. Repeat layers of noodles and chicken mixture twice. Top with remaining cheese sauce and mozzarella; cover.
Bake 25 min. or until heated through. Sprinkle with remaining basil. Let stand 5 min. before cutting to serve.
