Instructions
Preheat oven to 180C. Heat 1 tsp oil in a large frypan and cook the onion until soft and transparent. Add the mince and cook until browned. Add the taco seasoning and stir until combined.
Grease a pie dish (roughly the same size as the tortilla). Place one tortilla in the bottom of the dish , then layer with 1/2 cup mince, 1/4 cup cheese and a little taco sauce. Continue layering with the remaining ingredients. Place the final tortilla on top and sprinkle with cheese.
Bake in the oven for approximately 15 minutes, or until golden brown.
Cut into wedges and serve with a dollop of sour cream, a few slices of avocado, and the remaining taco sauce.