Preheat oven to 375 degrees. place pineapple, onion and bell pepper onto sheet pan and drizzle with oil, seasoning with salt and pepper. roast for 15-20 minutes or until veggies are golden brown.
Meanwhile, toss together shredded chicken and bbq sauce. chop toppings for bowls.
Once veggies are roasted, separate into bowls and top with bbq chicken and toppings!