Warm the oil in a pan over medium heat and add the onions. Sauté for two to three minutes.
Add the ground beef, breaking it up as it cooks. Add the taco seasoning, stirring occasionally. Cook for seven to eight minutes or until cooked through. Drain excess liquid.
On one side of each tortilla, add some cheese, the beef mixture and then more cheese.
Heat a pan over medium heat and, working in batches, pan fry the tacos. To do so, fold the other side of the taco over the filling and press down with a spatula. Cook for three to four minutes then carefully turn over and cook for another three to four minutes until crispy.
Divide onto plates and enjoy!
