Preheat the oven to 425 F. Poke holes in the sweet potatoes and place on baking sheet and bake for 45 minutes.
In a skillet, toss the rotisserie chicken with the BBQ sauce and simmer over low heat for 10 minutes.
After 45 minutes, carefully slit open the sweet potatoes and spoon in the BBQ chicken. Top with a few pinchfuls of shredded cheese.
Continue baking for another 15 to 30 minutes, or until sweet potatoes are tender all the way through.
Serve BBQ Chicken Sweet Potatoes with red onion garnish and side salad.