01 - 
                Heat olive oil in a medium skillet. Add onions and cook for 3-4 minutes, stirring occasionally.
              
              
              
                02 - 
                Season chicken thighs with salt and pepper, then place them in the skillet with the onions. Cover and cook on medium-low heat for 2-3 minutes. Uncover and continue cooking until the chicken reaches an internal temperature of 165°F, approximately 10 minutes.
              
              
              
                03 - 
                Using two forks, shred the chicken. Stir in the BBQ sauce evenly.
              
              
              
                04 - 
                Top the chicken with shredded cheese, cover the skillet, and cook for 1-2 minutes until the cheese is melted.