1. Cut cooked chicken into 12 strips and sprinkle with salt to taste.
2. Set aside.
3. In large skillet, sauté onions and garlic in butter till soft.
4. Add tomatoes, sauce, chilies, sugar, cumin, salt, oregano, and basil.
5. Add chicken.
6. Simmer 20 minutes.
7. Remove chicken.
8. Dip each tortilla in sauce.
9. Place one strip of chicken on each tortilla and add 2 T.
10. cheese.
11. Roll and place in 9 x 13 baking dish with seam side down.
12. Add sour cream to remaining sauce and pour over enchiladas.
13. Sprinkle top with remaining cheese.
14. Bake at 350 for 40 minutes.