In a gallon sized bag, add the sliced steak, 2 tbsp. olive oil, lime juice, garlic, cumin, garlic powder, onion powder, salt, and pepper. Close bag and allow to marinate at least 20 minutes.
Slice the red pepper, green pepper, and onion while meat is marinating.
Heat skillet until warm. Add in the 2 tbsp. olive oil and cook the red pepper, green pepper, and onion until tender.
Remove peppers/onion from skillet and set on a plate.
Remove the steak from the marinade and add to the skillet. Cook for about 4-6 minutes, until cooked through.
Toss the peppers/onion back into the skillet and allow to simmer for about 3-4 minutes.
Serve fajitas in flour tortillas with cheese, sour cream, salsa, etc. on top.
Squeeze fresh lime juice on top of each fajita prior to eating! Enjoy!!!