Brown ground beef in large skillet, drain. Add taco seasoning packet and prepare as directed. (My family likes it a bit spicier so we use 2 packets of seasoning.) Remove from heat. Cover skillet to keep mixture warm.
In separate skillet heat 2 Tbsp. of oil on med-hi heat till you can see steam rise. Then add one flour tortilla, fry about 60 seconds or till golden brown.
Flip tortilla and immediately add 2 half slices of cheese on each side, and spoon meat mixture in the middle. Fold taco in half slowly. Continue with remaining tortillas. Use toppings as desired.