Combine all seasoning ingredients.
Slice peppers and onions into thin strips.
Remove fat and grizzle from steak and slice across the grain into thin strips.
Heat large skillet to medium-high heat. Add vegetable oil and heat well. Add peppers and onions and allow to char slightly before stirring around.
Move vegetable mixture to the side of the pan and add meat. Spread out as best as possible and allow to cook slightly.
Sprinkle 1 Tbsp of seasoning mixture over top. Reserve remaining seasoning for future use. Stir fry meat and vegetable mixture until heated through and seasoning well blended.
Heat tortillas if desired for easier rolling.
Add 1/6 of meat mixture to each tortilla in a line across the middle. Do not over fill. Top with desired toppings. Fold side in slightly at the end of the line to form the bottom, then roll into a tube leaving the top end open.