Preheat oven to 350 degrees.
Saute onion in a nonstick skillet sprayed with Pam until tender. Add chicken, 1/2 cup cheese, picante sauce, cream cheese, and cumin. Heat until cheese melts.
Spoon about 1/3 cup chicken mixture down center of each tortilla and roll up. Place enchiladas in a 13x9 dish; drizzle with green taco sauce and sprinkle with 1/2 cup cheese.
Cover and bake at 350 degrees for 15 minutes or until cheese melts. Serve immediately.