Preheat your grill or skillet over medium heat.
In a bowl, combine shredded chicken with BBQ sauce.
Season the mixture with salt, pepper, and garlic powder to taste.
Lightly oil the grill or skillet.
Add the BBQ chicken mixture to the grill or skillet and heat for about 5 minutes.
Slice the slider buns in half.
Place a generous amount of chicken on the bottom half of each bun.
Sprinkle shredded cheddar cheese over the chicken.
Add chopped green onions and pickles, if desired.
Cover with the top half of the buns and serve warm.