Heat oil in large skillet over medium-high heat. Season chicken with Adobo. Cook chicken, turning once, until light golden brown on both sides, about 5 minutes. Add reserved tomato sauce mixture to pan; bring to a boil (be careful, the tomato sauce can splatter). Lower heat to medium low. Simmer, covered, flipping once, until chicken is cooked through (thermometer will register 165°F when inserted into thickest part of breast), about 20 minutes.