01 - Pat the chicken breasts dry and season both sides with salt, pepper, cumin, and oregano.
02 - Heat olive oil in a large skillet over medium-high heat. Add the chicken breasts and sear for 2–3 minutes per side until golden. Remove chicken and set aside.
03 - In the same skillet, add sliced onion and cook for 2–3 minutes until softened. Add garlic and jalapeño (if using), and sauté for 1 minute until fragrant.
04 - Pour in the salsa verde and lime juice, stirring to combine. Bring to a simmer.
05 - Return the chicken breasts to the skillet, nestling them into the sauce. Reduce heat to medium-low, cover, and simmer for 15–18 minutes, or until the chicken is cooked through (internal temperature 165°F).
06 - Remove from heat. Let rest for 2–3 minutes.
07 - Serve chicken topped with sauce, garnished with cilantro, queso fresco, and lime wedges.