Soften the onion and brown the mince in some oil. Add the fajita spice sachet and cook through on a low-medium heat for about 20-25 minutes.
Put a wee bit of oil in a frying pan on a medium heat and add the tortilla. Leave it for a minute. It may start to puff up, don't let it burn.
Spread a layer of mince over one half of the tortilla and sprinkle over some cheese.
Fold the tortilla in half, reduce the heat and cover with a lid until the cheese has melted.
Remove from the pan and cut into 3 pieces. Serve with a salad.
Serving Size 1
Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.