Brown meat and onion in frying pan.
Add tomatoes, sauce and taco mix. Mix well and simmer 10-15 minutes.
Grease 9x13” pan.
Lay 2 tortillas side by side.
Place ¼ cup meat mix on each.
Top with cheese and continue to the end of the tortillas with cheese on top.
Bake 20-25 minutes at 350 F.