Preheat the oven to 350°F.
Sprinkle the taco seasoning over the chicken, drizzle with oil and bake for 15 minutes or until the juices run clear.
Shred it with a pair of forks.
Arrange one layer of tortilla chips on a foil lined baking sheet and add the shredded chicken and green chilies on top.
Heat in the oven for about 5 minutes.
Meanwhile, make the cheese sauce. Melt the butter in a pan and then whisk in the flour and cook for a minute, and then whisk in the milk.
Keep cooking until it’s a kind of eggnog consistency, adding more milk if it gets too thick.
Take it off the heat and stir in the shredded cheese and cumin, stirring until the cheese melts.
Top the nachos with the cheese sauce (you don’t have to use it all), cilantro and avocado and serve with lime wedges.
Enjoy!