Melt the butter in a cast iron skillet on medium heat.
Add the onions, jalapenos and spices and cook until they begin to soften, about 5 minutes.
Add the peppers 2 minutes into the cooking of the onions.
Add the oil and additional butter to the pan and let heat for a minute.
Beat eggs and milk until fully combined.
Pour the eggs into the skillet. Let the eggs begin to firm – about 3 minutes.
Pull the firm eggs to the center of the pan and let cook some more.
Add 3/4 or so of the cup of cheese and mix through. Let cook for a couple of minutes.
Move to a 325 degree oven. After 5 minutes of cooking, top with the remaining cheese and the pepper rings.
Finish cooking in the oven for another 8 – 10 minutes.
Serve and enjoy!