How to Make It
In a good-sized skillet, heat oil on medium high heat. Add the cut corn tortillas and stir until crispy. Remove them from the pan and discard oil but leaving a tablespoon or so (as it holds some good corn flavor).
Add the butter and once melted, add the onion and chiles and cook for 30 seconds or so.
Add the eggs and stir to scramble. Once halfway scrambled, add back in the crisp tortillas, cheese, salt, and cilantro.
Serve with avocado and salsa.