Season steak with cumin, chili powder and salt. Preheat oven broiler to high. Heat avocado oil in a 12-inch ovenproof skillet (we used our @lodgecastiron) over medium-high heat on the stove. Add steak. Sauté 3 minutes (meat should be just slightly pink) then add garlic and peppers.
Sauté 3 minutes more then add eggs and a handful of cilantro. Stir quickly then turn heat down to medium. Let cook 3-4 minutes, until the egg is set around the edges but still runny in the middle.
Transfer the pan to the oven under the broiler and cook until the frittata is golden and firm in the middle, about 3-5 minutes.
Remove from oven and let cool for a few minutes before slicing up. Add a healthy dollop of Chipotle Lime Mayo.