Heat cast iron skillet, or large frying pan, over high heat. Add two tablespoons of oil to pan and then add peppers and onions.
Sauté until tender but still crisp. Remove from skillet and place in large bowl and set aside.
Add remaining two tablespoons of oil into pan and heat over medium high heat.
Remove steak from baggie and place in hot skillet.
Cook 5-6 minutes on each side for medium. Remove from skillet and place on cutting board.
Remove steak from skillet and place on cutting board. Cut against the grain and then cut into bite size pieces.
Place steak into large bowl with peppers, stir and set aside.
Add whisked eggs to skillet. Cook until desired doneness.
Next, add steak and peppers to scrambled eggs, mix to combine.
Top with cheese, let melt and then enjoy!