1Mix soup, sour cream, picante sauce and chili powder.
Mix 1 cup picante sauce mixture, chicken and cheese.
Spread about 1/4 cup chicken mixture down center of each tortilla. Roll up and place seam-side down in 3-qt. shallow baking dish. Pour remaining picante sauce mixture over enchiladas. Cover.
Bake at 350°F. for 40 min. or until hot. Top with tomato and onion. Serves 6.