Preparation / Directions:
1. Cook beef and onion in a large skillet until beef is browned, stirring until it crumbles; drain.
2. Stir tomato sauce and next 6 ingredients into meat mixture; bring to a boil. Reduce heat to medium, and cook, uncovered, 5 minutes, stirring occasionally.
3. Place half of the tortillas in bottom of a greased 13 x 9 x 2-inch baking dish. Spoon half of beef mixture over tortillas; sprinkle with 1 cup cheese. Repeat layers with remaining tortillas and beef mixture.
4. Bake at 375 degrees for 10 minutes. Sprinkle with remaining cheese; bake 5 additional minutes or until cheese melts.