Step 1

Marinate the chicken with lime juice, and season with chile powder, salt, pepper, garlic powder and cumin.

Step 2

Season vegetables with salt and pepper and toss with olive oil.

Step 3

To grill the onions and peppers outside on the grill, use a cast iron skillet and grill covered over medium heat until tender, about 15 minutes. Or, to cook them indoors, you can use a large skillet on the stove over medium heat for 16 to 18 minutes, covered until the onions and peppers are soft.

Step 4

Heat an outdoor grill or indoor grill pan over medium heat; grill chicken until cooked through, about 8 minutes on each side.

Step 5

Transfer to a cutting board when done and cut into strips. Once cooked, combine with the peppers and onions.

Step 6

Serve immediately with warmed tortillas, cheese and toppings.