Place the pounded chicken breasts in a large bowl or resealable plastic bag.
Add the minced garlic, olive oil, adobo sauce, chili powder, cumin, oregano (or Italian seasoning), salt, and black pepper to the chicken.
Mix thoroughly so the chicken is evenly coated, then cover or seal and refrigerate for at least 30 minutes or up to 2 days.
Heat about 1 tablespoon of oil in a large skillet over medium-high heat.
Add the marinated chicken to the hot pan and cook, turning occasionally, until cooked through, about 6–7 minutes per side depending on thickness.
Transfer the cooked chicken to a cutting board and let rest 5–10 minutes.
Slice or chop the chicken and serve in burritos, salads, bowls, or on its own.