In a very small bowl whisk all fajita seasoning ingredients, then set aside.
Heat 1 Tablespoon of oil in a large skillet over medium-high heat. Add in your onions, bell pepper strips, and season with just half of your homemade fajita seasoning mix.
Cook stirring frequently until just crisp-tender, about 3-4 minutes.
Remove peppers and onions from pan, and set on a plate.
To prepare the roll-ups, place the prepared steak strips on a large cutting board, and sprinkle them lightly with your remaining fajita seasoning, add peppers and onion strips equally and nicely as shown to each piece of steak, then roll up and around, and insert a toothpick to secure the rolls as shown.
Heat the same large skillet over medium-high heat again, and add in remaining oil.
Carefully add into the skillet all of your steak roll-ups, and cook for about 2 minutes per side, until golden brown and cooked to your liking.
Remove from heat and sprinkle with fresh chopped parsley/cilantro and green onions.
Enjoy while hot!