Mix together the marinade ingredients and add the chicken. Toss to coat, cover with plastic wrap and refrigerate 2 hours.
In a large grill skillet over medium high heat add chicken and cook for 3 to 4 minutes until browned and caramelized. Turn and cook for 4 minutes, or until internal temperature is 165°F (See Note 1 for outdoor grilling). Transfer to a cutting board and allow to rest 3-5 minutes. Slice into thin strips.
While chicken is cooking: In a large sauté pan over high heat roast the bell peppers and onions in the oil until slightly limp and charred. Set aside.
Serve sliced chicken and vegetables with warm tortillas. Top with pico de gallo (optional) and sliced limes.
Notes
I prefer thighs which have more flavor or use breast meat. Gas-grilling time for Chicken Thigh, Bone-In: 10 minutes, skin down, direct heat, then 10 to 12 minutes per side, indirect heat, lid on, or until internal temperature reaches 165°F. Charcoal-grilling time: 10 minutes, skin down, direct heat, then 8 to 10 minutes per side, indirect heat, lid on, or until internal temperature reaches 165°F. For Boneless thighs: 5 minutes per side. For chicken breasts, if too large, slice horizontally. Grill 5-6 minutes each side or until internal temperature reaches 165°F.
Mexican Limes are preferred, and also go by the name of Key Limes. They are small, round and very juicy (Luckily I have a tree).
I prefer using Mexican oregano in my seasoning blend. Mexican oregano is a relative of Lemon Verbena and is native to Mexico. Similar in that it’s pungent like Mediterranean oregano, Mexican oregano has notes of mild licorice and citrus. Mediterranean oregano is a member of the mint family and most often is used in Greek and Italian recipes. Mediterranean oregano is the one most found in spice racks and supermarkets.