01 -
Mix fajita seasonings in a small mixing bowl until combined and set aside.
02 -
Slice steak against the grain into small slices about half an inch thick. Place into a bowl or resealable gallon-sized bag and add 1 tablespoon of olive oil, toss to coat. Then add half of the mixed fajita seasoning to the meat and toss to coat.
03 -
In another bowl or resealable gallon-sized bag, add vegetables and the remaining olive oil. Toss to coat, then add the remaining fajita seasoning and mix until coated.
04 -
Preheat the Blackstone griddle for about 5 minutes over medium-high heat. Pour vegetable oil on the preheated griddle and spread out.
05 -
Put the steak and vegetables on the hot, oiled griddle. Cook for 8–10 minutes, tossing the steak and vegetables a few times until slightly charred and cooked through. Add garlic during the last few minutes.
06 -
During the last minute of cooking, place tortillas on the griddle to warm.
07 -
Remove the steak, vegetables, and tortillas from the griddle. Serve with desired toppings.