Prepare the rotisserie chicken by removing all of the chicken from the bone and peeling off the skin.
Cut all of the Hawaiian rolls in half and layer the bottoms of the rolls in a casserole dish side by side. Spread with mayo.
Cover the sliders with cheese. Then add the layer of mashed avocado on top before adding the chicken.
Then add the shredded rotisserie chicken to each bun. Finely shredded chicken is better for equal coverage across the slider.
Put the top buns back on the slider and smear with melted butter mixture. Bake covered with tinfoil.