In a medium bowl, combine oil, lime juice, Worcestershire sauce, and all seasonings. Whisk to combine. Set aside ¼ cup of marinade.
On a large sheet pan, spread out peppers and onions into a single layer. Pour ¼ cup marinade all over peppers and onions and toss to combine.
Place chicken breasts into the remaining marinade, in the bowl, and allow to marinade for 10 minutes. Place chicken onto sheet pan with peppers and onions.
Set broiler to low and cook for 15 minutes. Flip chicken over and cook for an additional 15 minutes.
When the chicken is cool enough to handle, slice.
Serve chicken, peppers and onions in tortillas with desired toppings.