Make the fajita seasoning. Combine all of the spices in a small glass bowl and container. Mix together and then set aside.
Heat 1 tablespoon of olive oil in a large skillet over medium high heat. Add steak strips and cook until medium rare. You might need to cook the steak in two batches.
Sprinkle half the seasoning over the steak adding 1 tablespoon of water. Cook for another 1-2 minutes then remove from heat and set aside on a platter. Cover with foil to keep warm.
Using the same pan, heat the last tablespoon of olive oil over medium high heat. Add the peppers and cook until slightly softened. Then add the onions and cook until both are softened and slightly charred in places.
Sprinkle in the rest of the fajita seasoning with 1 tablespoon of water and cook for another 1-2 minutes.
Place the cooked peppers and onions on the platter next to the steak.
Serve with tortillas and condiments.