01 - Season the chicken generously with salt and freshly ground black pepper on both sides, ensuring even coverage.
02 - Heat olive oil in a large skillet over medium-high heat until shimmering. Add seasoned chicken and sear for 2-3 minutes per side until golden brown. Remove chicken from skillet and set aside on a plate.
03 - In the same skillet, add diced onion and jalapeño. Sauté for 2 minutes until softened and fragrant. Add minced garlic and cook for 30 seconds until aromatic, being careful not to burn.
04 - Pour in salsa verde, ground cumin, dried oregano, and fresh lime juice. Stir well to combine all ingredients and bring the mixture to a gentle simmer.
05 - Return chicken to the skillet, nestling it into the sauce. Reduce heat to low, cover with a tight-fitting lid, and simmer for 15-18 minutes until chicken is cooked through and tender.
06 - Remove cooked chicken from the skillet and shred using two forks. Return shredded meat to the sauce, stir thoroughly to coat evenly, and simmer for 2 additional minutes to allow flavors to meld.
07 - Spoon chicken mixture into warm corn tortillas. Garnish generously with fresh cilantro, diced red onion, and sliced avocado. Serve with lime wedges for squeezing over the top.